Cover image for Unstable ground in western North Dakota
Unstable ground in western North Dakota
Title:
Unstable ground in western North Dakota
Author:
Trimble, Donald E.
Personal Author:
Publication Information:
Arlington, Va. : Branch of Distribution, U.S. Geological Survey, 1979.
Physical Description:
iii, 19 pages : illustrations, map ; 26 cm.
Language:
English
Format :
Book