Heikes, V. C.
Gold, silver, copper, lead and zinc in Montana in 1913 : Mines report. - Washington, D.C. Government Printing Office 1914 - pp. 583-620
Impreso
Ingles
MINERIA
Gold, silver, copper, lead and zinc in Montana in 1913 : Mines report. - Washington, D.C. Government Printing Office 1914 - pp. 583-620
Impreso
Ingles
MINERIA