TY - JOUR TI - Classic Period Hohokam Obsidian Studies in Southern Arizona N1 - Electronic journal JF - Journal of Field Archaeology AU - Douglas R. Mitchell and M. Steven Shackley PB - Maney Publishing UR - http://www.jstor.org/stable/530177 EP - 304 SP - 291 SN - 00934690 IS - 3 VL - 22 ER -