APA (7th ed.) Citation

Newell, N. D. (1971). An outline history of tropical organic reefs.

Chicago Style (17th ed.) Citation

Newell, Norman D. An Outline History of Tropical Organic Reefs. New York, NY, 1971.

MLA (9th ed.) Citation

Newell, Norman D. An Outline History of Tropical Organic Reefs. 1971.

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