APA (7th ed.) Citation

Hansen, J. R. (1999). Enchanted rendezvous: John C. Houbolt and the genesis of the lunar-orbit rendezvous concept ([1999 ed.].). [NASA History Office].

Chicago Style (17th ed.) Citation

Hansen, James R. Enchanted Rendezvous: John C. Houbolt and the Genesis of the Lunar-orbit Rendezvous Concept. [1999 ed.]. [Washington, D.C.]: [NASA History Office], 1999.

MLA (9th ed.) Citation

Hansen, James R. Enchanted Rendezvous: John C. Houbolt and the Genesis of the Lunar-orbit Rendezvous Concept. [1999 ed.]. [NASA History Office], 1999.