Cita APA (7th ed.)

Sadler, M., & Bollen, R. (1983). It's not easy being a bunny. Beginner Books.

Cita Chicago (17th ed.)

Sadler, Marilyn, i Roger Bollen. It's Not Easy Being a Bunny. New York: Beginner Books, 1983.

Cita MLA (8th ed.)

Sadler, Marilyn, i Roger Bollen. It's Not Easy Being a Bunny. Beginner Books, 1983.