APA-referens (7:e uppl.)
Andrews, E. W. (1965). Progress report on the 1960-1964 field seasons--National Geographic Society--Tulane University: Dzibilchaltun program. Middle American Research Institute, Tulane University.
Chicago-referens (17:e uppl.)
Andrews, E. Wyllys. Progress Report on the 1960-1964 Field Seasons--National Geographic Society--Tulane University: Dzibilchaltun Program. New Orleans: Middle American Research Institute, Tulane University, 1965.
MLA-referens (9:e uppl.)
Andrews, E. Wyllys. Progress Report on the 1960-1964 Field Seasons--National Geographic Society--Tulane University: Dzibilchaltun Program. Middle American Research Institute, Tulane University, 1965.
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