Spangenburg, R. (2002). Onboard the space shuttle. Franklin Watts.
Cita Chicago Style (17a ed.)Spangenburg, Ray. Onboard the Space Shuttle. New York: Franklin Watts, 2002.
Cita MLA (9a ed.)Spangenburg, Ray. Onboard the Space Shuttle. Franklin Watts, 2002.
Precaución: Estas citas no son 100% exactas.