ID:DA1011188X
Eckstrand, Olof Roger
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edited by O.R. Eckstrand, W.D. Sinclair, and R.I. Thorpe
Canada Communication Group 1995 The Geology of North America P-1 , Geology of Canada no. 8
Available at 9 libraries
edited by O.R. Eckstrand
Canadian Government Publishing Centre 1984 Economic geology report (Geological Survey of Canada) 36
Available at 1 libraries