{"source":"book","style":"apa","contributors": [{"function":"author","last":"Obregon","first":"Alvaro"} ],"pubtype": {"main": "pubnonperiodical"},"pubnonperiodical": {"title":"El seguro obrero","publisher":"Partido Revolucionario Institucional/Comite Ejecutivo Nacional, Comision Nacional Editorial","city":"[Mexico City]","year":"1970"},"datasource":"/z-wcorg/","datasource":"http://www.worldcat.org","oclc":"22906869"}