Niobium (columbium) and tantalum in Canada
By: by K. R. Dawson.
Series: Economic geology report ; no. 29; Economic geology report (Geological Survey of Canada) ;; no. 29.
Publisher: Dept. of Energy, Mines and Resources : available from Information Canada
Published: 1974
Place of publication: [Ottawa]
Language: eng
Number of pages: 157
Subjects: Niobium ores -- Canada.; Tantalum ores -- Canada.
Notes: Bibliography: p. 58-67.
Abstract in French.