Cita APA

Marshak, S. (2005). Earth: Portrait of a planet. New York: W.W. Norton.

Chicago Style Citation

Marshak, Stephen. Earth: Portrait of a Planet. New York: W.W. Norton, 2005.

Cita MLA

Marshak, Stephen. Earth: Portrait of a Planet. New York: W.W. Norton, 2005.

Atenció: Aquestes cites poden no estar 100% correctes.