@booklet {4644, title = {ROWE, R.B. 1958. Niobium (columbium) deposits of Canada. Economic Geology, Geological Survey of Canada, 18: 1-108.}, year = {1958}, note = {ROWE, R.B. 1958. Niobium (columbium) deposits of Canada. Economic Geology, Geological Survey of Canada, 18: 1-108.} }