https://catalogue-scientifique.canada.ca/record=3356485~S6*frc
Rechercher National Academy of Sciences (U.S.); Rechercher National Research Council (U.S.). Committee on Mineral Resources and the Environment; Rechercher Population Council; Rechercher United States. Dept. of the Interior; Rechercher National Science Foundation (U.S.); Rechercher Overly-Schell Associates
National Academy of Sciences, 1975
Publication gouvernementale