APA (7th ed.) Citation

Purseglove, J. W. (1968). Tropical crops: Dicotyledons, 1. Longmans.

Chicago Style (17th ed.) Citation

Purseglove, John W. Tropical Crops: Dicotyledons, 1. London: Longmans, 1968.

MLA (9th ed.) Citation

Purseglove, John W. Tropical Crops: Dicotyledons, 1. Longmans, 1968.