U.S. GEOLOGICAL SURVEY BULLETIN 969-F, P. 151-197.IDAHO BUREAU OF MINES & GEOLOGY PAMPHLET 43, P. 25.BULK MINEABLE PRECIOUS METAL DEPOSITS OF THE U.S.: SYMPOSIUMPROCEEDINGS, 1988, THE GEOLOGICAL SOCIETY OF NEVADA.COOKRO, T.M., LEAD AUTHOR FOR SECTION ON YELLOW PINEGOLD-TUNGSTEN.