APA (7th ed.) Citation

Dille, F., & Gygax, G. (1985). The green hydra. Pocket Books.

Chicago Style (17th ed.) Citation

Dille, Flint, and Gary Gygax. The Green Hydra. New York: Pocket Books, 1985.

MLA (8th ed.) Citation

Dille, Flint, and Gary Gygax. The Green Hydra. Pocket Books, 1985.

Warning: These citations may not always be 100% accurate.