Cooper, G. A. (1966). Charles Darwin, voyager-naturalist. Macmillan.
Chicago Style (17th ed.) CitationCooper, George Allen. Charles Darwin, Voyager-naturalist. New York: Macmillan, 1966.
MLA (9th ed.) CitationCooper, George Allen. Charles Darwin, Voyager-naturalist. Macmillan, 1966.
Warning: These citations may not always be 100% accurate.