00762cam a22002291 4500 gs 19000331 DLC 20260227111323.0 760409s1919 xx 000 0 eng gs 19000331 (OCoLC)2105208 DLC TxEU DLC premarc QE91 .A4 no. 14 Worcester, Philip G. (Philip George), 1884- Molybdenum deposits of Colorado, with general notes on the molybdenum industry, by P. G. Worcester. Denver, Colo., Eames bros., state printers, 1919. vii, [1], 131 p. illus. 23 cm. Colorado Geological Survey. Bulletin, 14 Bibliography: p. 120-123. Molybdenum Colorado. 25950 25950