{"source":"book","style":"apa","contributors": [{"function":"author","last":"Kirk","first":"G","middle":"S"},{"function":"author","last":"Raven","first":"J","middle":"E"} ],"pubtype": {"main": "pubnonperiodical"},"pubnonperiodical": {"title":"The presocratic philosophers : a critical history with a selection of texts","publisher":"University Press","city":"Cambridge, england","year":"1957"},"datasource":"/z-wcorg/","datasource":"http://www.worldcat.org","oclc":"870519"}