TY - BOOK ID - 136926833 TI - Mineral resources of the Kofa Unit 4 North Wilderness Study Area, Yuma County, Arizona AU - Sherrod, David R. AU - Smith, David B. AU - Kleinkopf, M. Dean AU - Gese, Diann D. PY - 1990 PB - Washington United States Government Printing Office DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:136926833 AB - ER -