APA (7th ed.) Citation

Knapp, A. W. Cocoa and Chocolate: Their History from Plantation to Consumer.

Chicago Style (17th ed.) Citation

Knapp, Arthur William. Cocoa and Chocolate: Their History from Plantation to Consumer.

MLA (9th ed.) Citation

Knapp, Arthur William. Cocoa and Chocolate: Their History from Plantation to Consumer.

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