G.M. (Director). Geological Survey of Canada. Dawson books & textbook
Annual Report (New Series) : Volume XI : Reports A, D, F, G, J, L, M, R, S, 1898
G.M. (Director). Geological Survey of Canada. Dawson
Printed by S. E. Dawson, Printer to the King's Most Excellent Majesty /1901-01-01 Hardcover
