Citazione Stile APA (7a Edizione)

Gallenkamp, C. (1981). Maya, the riddle and rediscovery of a lost civilization (2d rev. ed.). Penguin Books.

Citazione stile Chigago Style (17a edizione)

Gallenkamp, Charles. Maya, the Riddle and Rediscovery of a Lost Civilization. 2d rev. ed. Harmondsworth, Middlesex, Eng., New York: Penguin Books, 1981.

Citatione MLA (9a ed.)

Gallenkamp, Charles. Maya, the Riddle and Rediscovery of a Lost Civilization. 2d rev. ed. Penguin Books, 1981.