APA (7th ed.) Citation

Crosby, H. L., & Schaeffer, J. N. (1956). An introduction to Greek. Allyn and Bacon.

Chicago Style (17th ed.) Citation

Crosby, Henry Lamar, and John Nevin Schaeffer. An Introduction to Greek. Boston: Allyn and Bacon, 1956.

MLA (9th ed.) Citation

Crosby, Henry Lamar, and John Nevin Schaeffer. An Introduction to Greek. Allyn and Bacon, 1956.