APA (7th ed.) Citation

Nelson, H. (1972). Papua New Guinea: Black unity or black chaos? Penguin Books.

Chicago Style (17th ed.) Citation

Nelson, Hank. Papua New Guinea: Black Unity or Black Chaos? Harmondsworth: Penguin Books, 1972.

MLA (9th ed.) Citation

Nelson, Hank. Papua New Guinea: Black Unity or Black Chaos? Penguin Books, 1972.

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