APA (7th ed.) Citation

Natsume, S., Shibata, K., & Kai, M. (1966). I am a cat. Kenkyusha Ltd.

Chicago Style (17th ed.) Citation

Natsume, Soseki, Katsue Shibata, and Motonari Kai. I Am a Cat. Tokyo: Kenkyusha Ltd, 1966.

MLA (9th ed.) Citation

Natsume, Soseki, et al. I Am a Cat. Kenkyusha Ltd, 1966.