Preliminary report on the 1959-60 field season National Geographic Society - Tulane University Dzibilchaltun Program : with grants in aid from National Science Foundation and American Philosophical Society. E. Wyllys Andrews. appendix, Excavations at the Gruta de Balankanche, 1959 under joint auspices of Instituto Nacional de Antropologia e Historia de Mexico, National Geographic Society - Tulane University

Andrews, E. Wyllys [1916-1971]. Edward Wyllys National Geographic Society-Tulane University Program of Research on the Yucatan Peninsula 1961

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