APA (7th ed.) Citation

Catón, M. P., Varrón, M. T., Hooper, W. D., & Boyd, H. (1960). On agriculture. William Heinemann [etc.].

Chicago Style (17th ed.) Citation

Catón, Marco Porcio, Marco Terencio Varrón, William Davis Hooper, and Harrison Boyd. On Agriculture. London [etc.]: William Heinemann [etc.], 1960.

MLA (9th ed.) Citation

Catón, Marco Porcio, et al. On Agriculture. William Heinemann [etc.], 1960.