Cita APA (7a ed.)
Shelton, W. R., & Webb, J. E. Man's Conquest of Space. National Geographic Society, Special Publications Division.
Cita estilo Chicago (17a ed.)
Shelton, William R., y James E. Webb. Man's Conquest of Space. Washington, EUA: National Geographic Society, Special Publications Division.
Cita MLA (9a ed.)
Shelton, William R., y James E. Webb. Man's Conquest of Space. National Geographic Society, Special Publications Division.
Precaución: Estas citas no son 100% exactas.