Cita APA (7a ed.)

Griggs, B. (1988). The food factor: An account of the nutrition revolution. Penguin.

Cita Chicago Style (17a ed.)

Griggs, Barbara. The Food Factor: An Account of the Nutrition Revolution. London [etc.]: Penguin, 1988.

Cita MLA (9a ed.)

Griggs, Barbara. The Food Factor: An Account of the Nutrition Revolution. Penguin, 1988.