APA引文

Congress of Historians from Mexico and the United States. (1949). Memoria. Proceedings. [s.n.].

Chicago Style (17th ed.) Citation

Congress of Historians from Mexico and the United States. Memoria. Proceedings. Mexico: [s.n.], 1949.

MLA引文

Congress of Historians from Mexico and the United States. Memoria. Proceedings. [s.n.], 1949.