APA (7th ed.) Citation

Amos, H. D., & Lang, A. G. P. (1979). These were the Greeks. Dufour Editions.

Chicago Style (17th ed.) Citation

Amos, H. D., and A. G. P. Lang. These Were the Greeks. Chester Springs, Pa: Dufour Editions, 1979.

MLA (9th ed.) Citation

Amos, H. D., and A. G. P. Lang. These Were the Greeks. Dufour Editions, 1979.