TY - BOOK ID - 138456148 TI - Mineral resource perspectives 1975 PY - 1975 PB - Washington : United States Department of the Interior, Geological Survey, DB - UniCat KW - Mines and mineral resources KW - United States. UR - https://www.unicat.be/uniCat?func=search&query=sysid:138456148 AB - ER -