APA (7th ed.) Citation

Mason, K. L. J., & Lawrence, M. J. (1970). Key to Advanced Spanish course: K.L.J. Mason and M.J. Lawrence. Pergamon.

Chicago Style (17th ed.) Citation

Mason, K. L. J., and M. J. Lawrence. Key to Advanced Spanish Course: K.L.J. Mason and M.J. Lawrence. Oxford: Pergamon, 1970.

MLA (8th ed.) Citation

Mason, K. L. J., and M. J. Lawrence. Key to Advanced Spanish Course: K.L.J. Mason and M.J. Lawrence. Pergamon, 1970.