"videnskabelig artikel offentliggjort den 27. februar 1970"@da . "1970-02-01T00:00:00Z"^^ . "10.1126/SCIENCE.167.3922.1273" . "vedeck\u00FD \u010Dl\u00E1nok publikovan\u00FD 27. febru\u00E1ra 1970"@sk . "Rats' preference for earned in comparison with free food."@nl . . "1970\u5E74\u5B78\u8853\u6587\u7AE0"@zh-mo . "\u043D\u0430\u0443\u0447\u043D\u0438 \u0447\u043B\u0430\u043D\u0430\u043A \u043E\u0431\u0458\u0430\u0432\u0459\u0435\u043D 27. \u0444\u0435\u0431\u0440\u0443\u0430\u0440 1970."@sr . . "\u043D\u0430\u0443\u0447\u043D\u0430\u044F \u0441\u0442\u0430\u0442\u044C\u044F \u043E\u043F\u0443\u0431\u043B\u0438\u043A\u043E\u0432\u0430\u043D\u043D\u0430\u044F 27 \u0444\u0435\u0432\u0440\u0430\u043B\u044F 1970 \u0433."@ru . "articolo scientifico pubblicato il 27 febbraio 1970"@it . "article cient\u00EDfic"@ca . "article scientific"@oc . "\u0E1A\u0E17\u0E04\u0E27\u0E32\u0E21\u0E17\u0E32\u0E07\u0E27\u0E34\u0E17\u0E22\u0E32\u0E28\u0E32\u0E2A\u0E15\u0E23\u0E4C"@th . "artigo cient\u00EDfico publicado em 27 de fevereiro de 1970"@pt . . "167" . "1970-02-27T00:00:00Z"^^ . . "1970\u5E74\u5B66\u672F\u6587\u7AE0"@zh-hans . "vetenskaplig artikel publicerad den 27 februari 1970"@sv . "artyku\u0142 naukowy opublikowany 27 lutego 1970"@pl . "maqolai ilmiy"@tg-latn . "tudom\u00E1nyos cikk"@hu . "1970\u5E74\u5B78\u8853\u6587\u7AE0"@zh-tw . "3922" . "1970\uB144 \uB17C\uBB38"@ko . . . "teaduslik artikkel"@et . "b\u00E0i b\u00E1o khoa h\u1ECDc xu\u1EA5t b\u1EA3n ng\u00E0y 27 th\u00E1ng 2, 1970"@vi . "1970\u5E74\u5B66\u672F\u6587\u7AE0"@zh . "\u09AB\u09C7\u09AC\u09CD\u09B0\u09C1\u09AF\u09BC\u09BE\u09B0\u09BF \u09E7\u09EF\u09ED\u09E6-\u098F \u09AA\u09CD\u09B0\u0995\u09BE\u09B6\u09BF\u09A4 \u09AC\u09C8\u099C\u09CD\u099E\u09BE\u09A8\u09BF\u0995 \u09A8\u09BF\u09AC\u09A8\u09CD\u09A7"@bn . "27 \u015Eubat 1970'de yay\u0131mlanm\u0131\u015F bilimsel makale"@tr . "1273-1274" . . "\u043D\u0430\u0443\u043A\u043E\u0432\u0430 \u0441\u0442\u0430\u0442\u0442\u044F, \u043E\u043F\u0443\u0431\u043B\u0456\u043A\u043E\u0432\u0430\u043D\u0430 27 \u043B\u044E\u0442\u043E\u0433\u043E 1970"@uk . "artikel ilmiah"@id . "artikull shkencor i botuar m\u00EB 27 shkurt 1970"@sq . "wetenschappelijk artikel gepubliceerd op 27 februari 1970"@nl . . "v\u011Bdeck\u00FD \u010Dl\u00E1nek publikovan\u00FD 27. \u00FAnora 1970"@cs . "\u03B5\u03C0\u03B9\u03C3\u03C4\u03B7\u03BC\u03BF\u03BD\u03B9\u03BA\u03CC \u03AC\u03C1\u03B8\u03C1\u03BF"@el . . "Rats' Preference for Earned in Comparison with Free Food"@en . . "artigo cient\u00EDfico"@gl . "im 27. Februar 1970 ver\u00F6ffentlichter wissenschaftlicher Artikel"@de . . "1970\u5E74\u5B78\u8853\u6587\u7AE0"@yue . "scientific article published on February 27, 1970"@en . "1970\u5E74\u5B66\u672F\u6587\u7AE0"@zh-my . "znanstveni \u010Dlanek objavljen 27. februar 1970"@sl . . . "K. Berkowitz" . "vitenskapelig artikkel"@nb . "scientific article published in February 1970"@en-ca . . . . "\u05DE\u05D0\u05DE\u05E8 \u05DE\u05D3\u05E2\u05D9"@he . "art\u00EDculo cient\u00EDfico publicado el 27 de febrero de 1970"@es . "\u043D\u0430\u0443\u0447\u043D\u0430 \u0441\u0442\u0430\u0442\u0438\u044F, \u043F\u0443\u0431\u043B\u0438\u043A\u0443\u0432\u0430\u043D\u0430 \u043D\u0430 27 \u0444\u0435\u0432\u0440\u0443\u0430\u0440\u0438 1970 \u0433."@bg . . "1970\u5E74\u5B66\u672F\u6587\u7AE0"@zh-sg . . "\u0645\u0642\u0627\u0644\u0629 \u0639\u0644\u0645\u064A\u0629 \u0646\u0634\u0631\u062A \u0641\u064A \u0641\u0628\u0631\u0627\u064A\u0631 1970"@ar . . . . "Rats' Preference for Earned in Comparison with Free Food"@en . "article scientifique publi\u00E9 le 27 f\u00E9vrier 1970"@fr . "\u10E1\u10D0\u10DB\u10D4\u10EA\u10DC\u10D8\u10D4\u10E0\u10DD \u10E1\u10E2\u10D0\u10E2\u10D8\u10D0"@ka . "\u043D\u0430\u0443\u0447\u043D\u0438 \u0447\u043B\u0430\u043D\u0430\u043A \u043E\u0431\u0458\u0430\u0432\u0459\u0435\u043D 27. \u0444\u0435\u0431\u0440\u0443\u0430\u0440 1970."@sr-ec . . "Rats' preference for earned in comparison with free food."@nl . "articol \u0219tiin\u021Bific"@ro . "Rats' Preference for Earned in Comparison with Free Food"@en . . . "scienca artikolo"@eo . "mokslinis straipsnis, publikuotas 1970 m. vasario 27 d."@lt . "Rats' Preference for Earned in Comparison with Free Food"@en . . "artigo cient\u00EDfico publicado em 27 de fevereiro de 1970"@pt-br . "1970 n\u00EE \u00EA l\u016Bn-b\u00FBn"@nan . "17757186" . "scientific article published on 27 February 1970"@en-gb . "1970\u5E74\u306E\u5B66\u8853\u8AD6\u6587"@ja . "1970\u5E74\u5B66\u672F\u6587\u7AE0"@wuu . "Rats' preference for earned in comparison with free food."@nl . "1970\u5E74\u5B78\u8853\u6587\u7AE0"@zh-hk . "vitskapeleg artikkel"@nn . "\u043C\u0430\u049B\u043E\u043B\u0430\u0438 \u0438\u043B\u043C\u04E3"@tg-cyrl . . "1970\u5E74\u5B78\u8853\u6587\u7AE0"@zh-hant . "artikulong pang-agham"@tl . "tieteellinen artikkeli"@fi . . "art\u00EDculu cient\u00EDficu espubliz\u00E1u en 1970"@ast . . "5411917" . . . "nau\u010Dni \u010Dlanak"@sr-el . "1970\u5E74\u5B66\u672F\u6587\u7AE0"@zh-cn . "B. Carder" .