Wyoming vermiculite deposits,
Hagner, Arthur Feodor, 1911-
Wyoming vermiculite deposits, by Arthur F. Hagner. - Laramie, University of Wyoming, 1944. - 47 p. illus.
"References": p. 45-47.
gs 44000033
Vermiculite.
Mines and mineral resources--Wyoming.
QE181 / .A25 no. 34
Wyoming vermiculite deposits, by Arthur F. Hagner. - Laramie, University of Wyoming, 1944. - 47 p. illus.
"References": p. 45-47.
gs 44000033
Vermiculite.
Mines and mineral resources--Wyoming.
QE181 / .A25 no. 34