Cita APA (7th ed.)
Friedman, L. (2015). Human spaceflight: From Mars to the stars. The University of Arizona Press.
Cita Chicago (17th ed.)
Friedman, Louis. Human Spaceflight: From Mars to the Stars. Tucson: The University of Arizona Press, 2015.
Cita MLA (9th ed.)
Friedman, Louis. Human Spaceflight: From Mars to the Stars. The University of Arizona Press, 2015.
Atenció: Aquestes cites poden no estar 100% correctes.