APA (7th ed.) Citation

Burckhardt, C. J., Muir, E., & Muir, W. (1967). Richelieu and his age. Harcourt, Brace & World.

Chicago Style (17th ed.) Citation

Burckhardt, Carl Jacob, Edwin Muir, and Willa Muir. Richelieu and His Age. New York: Harcourt, Brace & World, 1967.

MLA (9th ed.) Citation

Burckhardt, Carl Jacob, et al. Richelieu and His Age. Harcourt, Brace & World, 1967.