https://catalogue-scientifique.canada.ca/record=1245135~S6*frc
Rechercher Canada. Energy, Mines and Resources Canada; Rechercher Scouten, Mitchell, Sigurdson & Associates; Rechercher Manitoba. Dept. of Energy and Mines; Rechercher Manitoba. Dept. of Mines, Natural Resources and Environment
Energy, Mines and Resources Canada, 1983
Publication gouvernementale