APA (7th ed.) Citation

Richman, I. B. (1919). The Spanish conquerors. Yale university press.

Chicago Style (17th ed.) Citation

Richman, Irving Berdine. The Spanish Conquerors. New Haven: Yale university press, 1919.

MLA (9th ed.) Citation

Richman, Irving Berdine. The Spanish Conquerors. Yale university press, 1919.