APA (7th ed.) Citation

Archer, T. A., & Kingsford, C. L. (1894). The crusades: The story of the Latin kingdom of Jerusulem. G.P. Putnam's sons; [etc., etc.].

Chicago Style (17th ed.) Citation

Archer, Thomas Andrew, and Charles Lethbridge Kingsford. The Crusades: The Story of the Latin Kingdom of Jerusulem. New York: G.P. Putnam's sons; [etc., etc.], 1894.

MLA (9th ed.) Citation

Archer, Thomas Andrew, and Charles Lethbridge Kingsford. The Crusades: The Story of the Latin Kingdom of Jerusulem. G.P. Putnam's sons; [etc., etc.], 1894.