Cita APA (7a ed.)

Sheehan, W., & Bell, J. (2021). Discovering Mars: A history of observation and exploration of the Red Planet. The University of Arizona Press.

Cita Chicago Style (17a ed.)

Sheehan, William, y Jim Bell. Discovering Mars: A History of Observation and Exploration of the Red Planet. Tucson: The University of Arizona Press, 2021.

Cita MLA (8a ed.)

Sheehan, William, y Jim Bell. Discovering Mars: A History of Observation and Exploration of the Red Planet. The University of Arizona Press, 2021.