APA (7th ed.) Citation

Natsume, S., Ito, A., & Wilson, G. (2002). I am a cat. Tuttle Publishing.

Chicago Style (17th ed.) Citation

Natsume, Söseki, Aiko Ito, and Graeme Wilson. I Am a Cat. North Clarendon, VT: Tuttle Publishing, 2002.

MLA (9th ed.) Citation

Natsume, Söseki, et al. I Am a Cat. Tuttle Publishing, 2002.