USGS PINAL RANCH QUADWILSON E D TUNGSTEN DEPOSITS OF AZ AZBM BULL 148 1941 P 28ADMR SAMSEL CLAIMS FILEDALE V B TUNGSTEN DEPOSITS OF GILA YAVAPAI AND MOHAVE CTYSUSBM 1C 8078 1961 P 7PETERSON N P GEOLOGY OF THE PINAL RANCH QUAD USGS BULL 1141-H 1963 P H-17