Cita APA (7th ed.)

Duckworth, R. B. (1966). Fruit and vegetables. Pergamon Press.

Cita Chicago (17th ed.)

Duckworth, Ronald Barrett. Fruit and Vegetables. Oxford: Pergamon Press, 1966.

Cita MLA (9th ed.)

Duckworth, Ronald Barrett. Fruit and Vegetables. Pergamon Press, 1966.