TY - GEN AU - AU - Salmen,Larry ED - United States. ED - United States. TI - Natural resource geographic data bases for Montana and Wyoming U1 - US 333.709786 23rd ed. PY - 1977/// CY - Washington DC PB - U. s. Department of the interior, Fish and wildlife service KW - Natural resources KW - Databases. KW - Montana KW - Wyoming N1 - Issue of September 1977 ER -