APA (7th ed.) Citation

Seuss Dr. (1960). One fish, two fish, red fish, blue fish. Beginner Books; distributed by Random House.

Chicago Style (17th ed.) Citation

Seuss Dr. One Fish, Two Fish, Red Fish, Blue Fish. New York: Beginner Books; distributed by Random House, 1960.

MLA (9th ed.) Citation

Seuss Dr. One Fish, Two Fish, Red Fish, Blue Fish. Beginner Books; distributed by Random House, 1960.