{"source":"conference","style":"apa","conference": {"title":"Agriculture and energy : proceedings of a conference, Washington University, St. Louis, Missouri, June 17-19, 1976" },"contributors": [{"function":"author","last":"Lockeretz","first":"William"} ],"pubtype": {"main": "pubnonperiodical"},"pubnonperiodical": {"title":"Agriculture and energy : proceedings of a conference, Washington University, St. Louis, Missouri, June 17-19, 1976","publisher":"Academic Press","city":"New York","year":"1977"},"datasource":"/z-wcorg/","datasource":"http://www.worldcat.org","oclc":"3167837","isbn":"0124542506 9780124542501"}