Cover image for Summary of the engineering geology of the Harold D. Roberts Tunnel, Colorado
Summary of the engineering geology of the Harold D. Roberts Tunnel, Colorado
Title:
Summary of the engineering geology of the Harold D. Roberts Tunnel, Colorado
Author:
Wahlstrom, Ernest Eugene, 1909-
Publication Information:
[Reston, Va.?] : U.S. Dept. of the Interior, Geological Survey ; [Washington, D.C., the Supt. of Docs., U.S. G.P.O.], 1981.
Physical Description:
v, 15 pages : illustrations ; 29 cm.
General Note:
2 folded sheets of ill. in pocket.
Language:
English
Added Corporate Author:
Format :
Book