Geological Survey bulletin
Journal, Magazine, English, 1949-
U.S. Dept. of the Interior, Geological Survey ; For sale by the Supt. of Docs., U.S. G.P.O., [Reston, Va.?], Washington, D.C., 1949-
Periodicals
volumes : illustrations, maps (some folded, some color) ; 24 cm
0364-4510, 0364-4510
2160332