APA (7th ed.) Citation

Urquhart, D. H. (1961). Cocoa. Longmans.

Chicago Style (17th ed.) Citation

Urquhart, Duncan Hector. Cocoa. London: Longmans, 1961.

MLA (9th ed.) Citation

Urquhart, Duncan Hector. Cocoa. Longmans, 1961.

Warning: These citations may not always be 100% accurate.