APA (7th ed.) Citation

Vail, V. H., Sparks, K., & Huber, T. (1978). Modern German (2nd ed.). Harcourt Brace Jovanovich.

Chicago Style (17th ed.) Citation

Vail, Van Horn, Kimberly Sparks, and Thomas Huber. Modern German. 2nd ed. New York: Harcourt Brace Jovanovich, 1978.

MLA (9th ed.) Citation

Vail, Van Horn, et al. Modern German. 2nd ed. Harcourt Brace Jovanovich, 1978.