{"source":"book","style":"apa","contributors": [{"function":"author","last":"Margolin","first":"Malcolm"} ],"pubtype": {"main": "pubnonperiodical"},"pubnonperiodical": {"title":"The earth manual","publisher":"Houghton Mifflin","city":"Boston","year":"1975"},"datasource":"/z-wcorg/","datasource":"http://www.worldcat.org","oclc":"1176737","isbn":"0395204259 9780395204252 0395205417 9780395205419"}