APA (7th ed.) Citation

Jahn, J., & Axelrod, H. R. (1987). A step by step book about turtles. T.F.H. Publications.

Chicago Style (17th ed.) Citation

Jahn, Johannes, and Herbert R. Axelrod. A Step by Step Book About Turtles. Neptune City, NJ: T.F.H. Publications, 1987.

MLA (9th ed.) Citation

Jahn, Johannes, and Herbert R. Axelrod. A Step by Step Book About Turtles. T.F.H. Publications, 1987.