APA Citation

Castrillo, P., & Castrillo, P. (1947). Valle y Mundo. Nueva York: Spanish-American.

Chicago Style Citation

Castrillo, Primo, and Primo Castrillo. Valle Y Mundo. Nueva York: Spanish-American, 1947.

MLA Citation

Castrillo, Primo, and Primo Castrillo. Valle Y Mundo. Nueva York: Spanish-American, 1947.

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