ID:DA06528446
Trettin, H.P.
Search authors sharing the same name
edited by H.P. Trettin
Geological Survey of Canada 1991 The Geology of North America v. E , Geology of Canada no. 3
Available at 8 libraries
compilation by R. Thorsteinsson and H.P. Trettin
Geological Survey of Canada 1972 Map / Geological Survey of Canada 1310A
Cartographic Material (Map)
Available at 2 libraries
Geological Survey of Canada 1972 Map / Geological Survey of Canada 1309A
Geological Survey of Canada 1972 Map / Geological Survey of Canada 1305A
Geological Survey of Canada 1971 Map / Geological Survey of Canada 1306A
compilation by H.P. Trettin and E.T. Tozer ; cartography by the Geological Survey of Canada
Surveys and Mapping Branch 1963 Map / Geological Survey of Canada 21-1963
