Parks, P. J. (2005). Exploring Mars. Lucent Books.
Cita Chicago (17th ed.)Parks, Peggy J. Exploring Mars. Detroit, Mich: Lucent Books, 2005.
Cita MLA (9th ed.)Parks, Peggy J. Exploring Mars. Lucent Books, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.