https://catalogue-scientifique.canada.ca/record=3086661~S6*frc
Rechercher Centre for Land and Biological Resources Research (Canada); Rechercher Canada. Environment Canada; Rechercher Canada. State of the Environment Directorate; Rechercher Canada. Agriculture and Agri-food Canada; Rechercher Center for Land and Biological Resources Research (Canada); Rechercher Ecological Stratification Working Group (Canada)
Centre for Land and Biological Resources Research, Agriculture and Agri-Food Canada, 1996, ISBN : 066224107X
Livre