Manganese deposits of Colorado,
Muilenburg, G. A. 1889-
Manganese deposits of Colorado, by G. A. Muilenburg. - Denver, Colo., Eames brothers, state printers, 1919. - 3 p. l., 76 p. 23 cm.
"Bibliography on the occurrence, geology, and mining of manganese, with some references on its metallurgy and uses, comp. by Harold L. Wheeler": p. 54-69.
gs 19000332
Manganese ores--Colorado.
QE91 / .A4 no. 15
Manganese deposits of Colorado, by G. A. Muilenburg. - Denver, Colo., Eames brothers, state printers, 1919. - 3 p. l., 76 p. 23 cm.
"Bibliography on the occurrence, geology, and mining of manganese, with some references on its metallurgy and uses, comp. by Harold L. Wheeler": p. 54-69.
gs 19000332
Manganese ores--Colorado.
QE91 / .A4 no. 15