Reference | {Deposit:: MONTANA INDUSTRIAL MINERALS, MINOBRAS, 1975, P. 14.}{Deposit:: INDUSTRY AND I* RESOURCES,PT.2, MONTANA, USBM RI 6611.}{Deposit:: SWANSON, R.W., 1970, MIN. RES. IN PERMIAN ROCKS OF SW}{Deposit:: MONTANA: USGS PROF. PAPER 313-E, P. 715.}{Deposit:: MRB RPT 113, P. 92, 93.} |