APA (7th ed.) Citation

Wilkinson, P., & Ingpen, R. (1994). People who changed the world. Chelsea House.

Chicago Style (17th ed.) Citation

Wilkinson, Philip, and Robert Ingpen. People Who Changed the World. New York: Chelsea House, 1994.

MLA (8th ed.) Citation

Wilkinson, Philip, and Robert Ingpen. People Who Changed the World. Chelsea House, 1994.

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