APA (7th ed.) Citation

Mason, K. L. J., & Sager, J. C. (1969). Spanish oral drill book ([1st ed.].). Pergamon Press.

Chicago Style (17th ed.) Citation

Mason, K. L. J., and Juan C. Sager. Spanish Oral Drill Book. [1st ed.]. Oxford, New York: Pergamon Press, 1969.

MLA (9th ed.) Citation

Mason, K. L. J., and Juan C. Sager. Spanish Oral Drill Book. [1st ed.]. Pergamon Press, 1969.