@article{219541, recid = {219541}, author = {Bliss, James D. and Menzie, W. D.}, title = {Preliminary grade and volume model of alluvial Sn-Au placers /}, publisher = {U.S. Geological Survey,}, address = {[Menlo Park, CA] :}, pages = {14 leaves :}, year = {1995}, note = {Cover title.}, url = {http://library.usi.edu/record/219541}, }