APA (7th ed.) Citation

Osborne, J., Keach, S., & Anhalt, E. (1973). Luther. Caedmon.

Chicago Style (17th ed.) Citation

Osborne, John, Stacy Keach, and Edward Anhalt. Luther. New York: Caedmon, 1973.

MLA (9th ed.) Citation

Osborne, John, et al. Luther. Caedmon, 1973.