APA (7th ed.) Citation

Hayes, C. J. H. (1951). The United States and Spain: An interpretation. Greenwood Press.

Chicago Style (17th ed.) Citation

Hayes, Carlton J. H. The United States and Spain: An Interpretation. Westport, Connecticut: Greenwood Press, 1951.

MLA (9th ed.) Citation

Hayes, Carlton J. H. The United States and Spain: An Interpretation. Greenwood Press, 1951.