TY - BOOK ID - 135541250 TI - Mineral resources of the Papa Keal and Zapata Creek Wilderness Study Areas, Alamosa County, Colorado AU - Johnson, Bruce R. AU - Hassemer, Jerry R. AU - Hannigan, Brian J. PY - 1986 PB - Washington United States Geological Survey, Department of the Interior DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:135541250 AB - ER -