APA (7th ed.) Citation

Kelly, M. E., & Freeman, M. (2016). Astrotwins: Project rescue (First edition.). Simon & Schuster.

Chicago Style (17th ed.) Citation

Kelly, Mark E., and Martha Freeman. Astrotwins: Project Rescue. First edition. New York: Simon & Schuster, 2016.

MLA (8th ed.) Citation

Kelly, Mark E., and Martha Freeman. Astrotwins: Project Rescue. First edition. Simon & Schuster, 2016.

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