APA (7th ed.) Citation

Čapek, K., Čapek, J., Weatherall, M., & Weatherall, R. (1940). I had a dog and a cat. Allen & Unwin.

Chicago Style (17th ed.) Citation

Čapek, Karel, Josef Čapek, Marie Weatherall, and R. Weatherall. I Had a Dog and a Cat. London: Allen & Unwin, 1940.

MLA (8th ed.) Citation

Čapek, Karel, et al. I Had a Dog and a Cat. Allen & Unwin, 1940.