Norton, R. D. (1983). The Book of Chac: : Programming Studies for Mexican Agriculture. Baltimore: : Johns Hopkins University.
Citación estilo ChicagoNorton, Roger D. The Book of Chac: : Programming Studies for Mexican Agriculture. Baltimore: : Johns Hopkins University, 1983.
Cita MLANorton, Roger D. The Book of Chac: : Programming Studies for Mexican Agriculture. Baltimore: : Johns Hopkins University, 1983.
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