APA (7th ed.) Citation

Robottom, J., & Williams, B. (1971). Food and people (1. publ., 2. impression.). Longman.

Chicago Style (17th ed.) Citation

Robottom, John, and Barry Williams. Food and People. 1. publ., 2. impression. London: Longman, 1971.

MLA (9th ed.) Citation

Robottom, John, and Barry Williams. Food and People. 1. publ., 2. impression. Longman, 1971.