Jenison, H.A.C.
Sulphur and pyrites in 1921. - Washington, D.C. Government Printing Office 1922 - pp. 169-173 - Mineral Resources of the United States, 1921-Part II .
Impreso
Ingles
MINERIA
AZUFRE
PIRITA
622
Sulphur and pyrites in 1921. - Washington, D.C. Government Printing Office 1922 - pp. 169-173 - Mineral Resources of the United States, 1921-Part II .
Impreso
Ingles
MINERIA
AZUFRE
PIRITA
622