Gallenkamp, C. (1976). Maya, the riddle and rediscovery of a lost civilization (Rev. and expanded ed.). D. McKay Co..
Chicago Style (17th ed.) CitationGallenkamp, Charles. Maya, the Riddle and Rediscovery of a Lost Civilization. Rev. and expanded ed. New York: D. McKay Co., 1976.
MLA (9th ed.) CitationGallenkamp, Charles. Maya, the Riddle and Rediscovery of a Lost Civilization. Rev. and expanded ed. D. McKay Co., 1976.
Warning: These citations may not always be 100% accurate.