APA (7th ed.) Citation

Bates, H. E., & Farmer, P. (1961). The day of the tortoise. M. Joseph.

Chicago Style (17th ed.) Citation

Bates, H. E., and Peter Farmer. The Day of the Tortoise. London: M. Joseph, 1961.

MLA (9th ed.) Citation

Bates, H. E., and Peter Farmer. The Day of the Tortoise. M. Joseph, 1961.

Warning: These citations may not always be 100% accurate.