Authors: HADDEN Sue H SCHUELE Ethel M

Citation: H. Hadden Sue et M. Schuele Ethel, Vermont's state gem, mineral, rock § fossil, Rocks and minerals , 71(4), 1996, pp. 216-217

Authors: SCHUELE Ethel M

Citation: M. Schuele Ethel, Vermont's geologic history as told by its fossils, Rocks and minerals , 71(4), 1996, pp. 226-230