APA (7th ed.) Citation

Santesson, H. S., & Gaughan, J. (1965). Rulers of men. Pyramid Books.

Chicago Style (17th ed.) Citation

Santesson, Hans Stefan, and Jack Gaughan. Rulers of Men. New York: Pyramid Books, 1965.

MLA (9th ed.) Citation

Santesson, Hans Stefan, and Jack Gaughan. Rulers of Men. Pyramid Books, 1965.