TY - BOOK AU - Coffin,Reuben Clare TI - Radium, uranium and vanadium deposits of southwestern Colorado, AV - QE91 .A4 no. 16 PY - 1921/// CY - Denver, Col. PB - Eames brothers, state printers KW - Radium KW - Uranium KW - Vanadium KW - Mines and mineral resources KW - Colorado N1 - Bibliography : p. 226-227; Bibliographical foot-notes ER -