https://catalogue-scientifique.canada.ca/record=3647092~S6*frc
Rechercher Bartlett, Charles O; Rechercher Boyer, George F; Rechercher Carter, Brian C; Rechercher Crissey, W. F; Rechercher Lowther, James K; Rechercher Vaillancourt, J; Rechercher Glover, F. A
Canadian Wildlife Service, 1953
Publication gouvernementale