https://catalogue-scientifique.canada.ca/record=3463265~S6*frc
Rechercher Munro, P. S; Rechercher Halliday, R. J; Rechercher Shannon, W. E; Rechercher Schieman, D. R. J
Geological Survey of Canada, 1990
At the end of 1987 the Geological Survey of Canada, Dept. of Energy, Mines and Resources, operated or contracted the operation of 14 standard seismograph...
Publication gouvernementale