https://catalogue-scientifique.canada.ca/record=3994282~S6*frc
Rechercher Kelley, J.T.: Barnhardt, W.A; Rechercher Belknap, D.F; Rechercher Dickson, S.M; Rechercher Kelley, A.R
Maine Geological Survey, Natural Resources Information and Mapping Center, Dept. of Conservation, 1998
Livre