APA (7th ed.) Citation

Kennedy, G. P. (1991). The first men in space. Chelsea House Publishers.

Chicago Style (17th ed.) Citation

Kennedy, Gregory P. The First Men in Space. New York: Chelsea House Publishers, 1991.

MLA (9th ed.) Citation

Kennedy, Gregory P. The First Men in Space. Chelsea House Publishers, 1991.

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