{"source":"book","style":"apa","contributors": [{"function":"author","last":"Buero","first":"Vallejo","middle":"Antonio"},{"function":"author","last":"Diez","first":"de","middle":"Revenga, Francisco Javier"} ],"pubtype": {"main": "pubnonperiodical"},"pubnonperiodical": {"title":"La fundacion","publisher":"Espasa-Calpe","city":"Madrid","year":"1990"},"datasource":"/z-wcorg/","datasource":"http://www.worldcat.org","oclc":"1187130692","isbn":"8423919145 9788423919147"}