Colorado ferberite and the wolframite series,
Hess, Frank Lee, 1871-1955.
Colorado ferberite and the wolframite series, by Frank L. Hess and Waldemar T. Schaller. - Washington, Govt. print. off., 1914. - 75 p. XIV pl. on 7 l., diagrs. 23 cm. - U.S. Geological survey. Bulletin 583 .
Bibliography: p. 74-75.
gs 14000757
Ferberite.
Wolframite group.
QE75 / .B9 no. 583
Colorado ferberite and the wolframite series, by Frank L. Hess and Waldemar T. Schaller. - Washington, Govt. print. off., 1914. - 75 p. XIV pl. on 7 l., diagrs. 23 cm. - U.S. Geological survey. Bulletin 583 .
Bibliography: p. 74-75.
gs 14000757
Ferberite.
Wolframite group.
QE75 / .B9 no. 583