APA (7th ed.) Citation

Johnson, P. (2012). Darwin: Portrait of a genius. Viking.

Chicago Style (17th ed.) Citation

Johnson, Paul. Darwin: Portrait of a Genius. New York: Viking, 2012.

MLA (9th ed.) Citation

Johnson, Paul. Darwin: Portrait of a Genius. Viking, 2012.

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