Cover image for The national hydrologic bench-mark network
Title:
The national hydrologic bench-mark network
Author:
Cobb, Ernest D.
Personal Author:
Publication Information:
Washington : U.S. Dept. of the Interior, Geological Survey, 1971.
Physical Description:
iv, 38 pages : illustrations, map ; 26 cm.
Language:
English
Added Corporate Author:
Format :
Book