{"source":"book","style":"apa","contributors": [{"function":"author","last":"Yerkes","first":"Robert","middle":"Mearns,"} ],"pubtype": {"main": "pubnonperiodical"},"pubnonperiodical": {"title":"Robert Mearns Yerkes papers,","year":"1822"},"datasource":"/z-wcorg/","datasource":"http://www.worldcat.org","oclc":"81986071"}