Haviland, W. A. (1968). Ancient lowland Maya social organization. Middle American Research Institute, Tulane University.
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Chicago-čujuhus (17. p.)
Haviland, William A. Ancient Lowland Maya Social Organization. New Orleans: Middle American Research Institute, Tulane University, 1968.
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MLA-čujuhus (9. p.)
Haviland, William A. Ancient Lowland Maya Social Organization. Middle American Research Institute, Tulane University, 1968.
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