APA (7th ed.) Citation

Castro, A. (1971). The Spaniards: An introduction to their history. University of California Press.

Chicago Style (17th ed.) Citation

Castro, Américo. The Spaniards: An Introduction to Their History. Berkeley: University of California Press, 1971.

MLA (8th ed.) Citation

Castro, Américo. The Spaniards: An Introduction to Their History. University of California Press, 1971.

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