Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.