APA (7th ed.) Citation

Lobel, A. (1998). Frog and Toad are friends. Atlas Editions.

Chicago Style (17th ed.) Citation

Lobel, Arnold. Frog and Toad Are Friends. Columbus, Ohio: Atlas Editions, 1998.

MLA (9th ed.) Citation

Lobel, Arnold. Frog and Toad Are Friends. Atlas Editions, 1998.