{"id":"000027228","type":"book","title":"¿Existió un imperio Olmeca? - México","container-title":"Memoria del Colegio Nacional ; 5. 1964, No. 3, S. 3-52 : zahlr. Ill ; 4 Kt. ; 1 Faltkt","author":[{"family":"Caso","given":"Alfonso 1896-1970."}],"issued":{"raw":"1964"}}