APA (7th ed.) Citation

Worden, A., & French, F. (2011). Falling to Earth: An Apollo 15 astronaut's journey (1. ed.). Smithsonian Books.

Chicago Style (17th ed.) Citation

Worden, Al, and Francis French. Falling to Earth: An Apollo 15 Astronaut's Journey. 1. ed. Washington, DC: Smithsonian Books, 2011.

MLA (9th ed.) Citation

Worden, Al, and Francis French. Falling to Earth: An Apollo 15 Astronaut's Journey. 1. ed. Smithsonian Books, 2011.