APA (7th ed.) Citation

Sánchez Castro, A. (1966). Obregón en Guerrero, 1920. [publisher not identified].

Chicago Style (17th ed.) Citation

Sánchez Castro, Alejandro. Obregón En Guerrero, 1920. Chilpancingo, Gro. [Mexico]: [publisher not identified], 1966.

MLA (9th ed.) Citation

Sánchez Castro, Alejandro. Obregón En Guerrero, 1920. [publisher not identified], 1966.

Warning: These citations may not always be 100% accurate.