Laylander, D. (1995). The question of prehistoric agriculture among the western Yumans. Universidad Autónoma de Baja California.
Chicago Stili AlıntıLaylander, Don. The Question of Prehistoric Agriculture Among the Western Yumans. Universidad Autónoma de Baja California, 1995.
MLA AlıntıLaylander, Don. The Question of Prehistoric Agriculture Among the Western Yumans. Universidad Autónoma de Baja California, 1995.
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