https://catalogue-scientifique.canada.ca/record=3625182~S6*frc
Rechercher Pardy, K. E; Rechercher Sutton, W. J; Rechercher Banfield, E. C; Rechercher O'Brien, D. S; Rechercher Stone, D. M; Rechercher Carew, G. C; Rechercher Bowers, W. W
Canadian Forest Service, Natural Resources Canada, 1994, ISBN : 0662222113
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