APA (7th ed.) Citation

HARTLEY, C. The oil palm. Longman Group Limited.

Chicago Style (17th ed.) Citation

HARTLEY, C.W.S. The Oil Palm. Longman Group Limited.

MLA (8th ed.) Citation

HARTLEY, C.W.S. The Oil Palm. Longman Group Limited.

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