APA (7th ed.) Citation

Morozumi, A. (1990). One gorilla: A counting book (1st American ed.). [publisher not identified].

Chicago Style (17th ed.) Citation

Morozumi, Atsuko. One Gorilla: A Counting Book. 1st American ed. New York : Farrar, Straus & Giroux: [publisher not identified], 1990.

MLA (9th ed.) Citation

Morozumi, Atsuko. One Gorilla: A Counting Book. 1st American ed. [publisher not identified], 1990.