Cover image for Grinnell and Sperry Glaciers, Glacier National Park, Montana : a record of vanishing ice : recorded observations, during approximately 80 years of the shrinkage of the two largest glaciers in Glacier National Park
Grinnell and Sperry Glaciers, Glacier National Park, Montana : a record of vanishing ice : recorded observations, during approximately 80 years of the shrinkage of the two largest glaciers in Glacier National Park
Title:
Grinnell and Sperry Glaciers, Glacier National Park, Montana : a record of vanishing ice : recorded observations, during approximately 80 years of the shrinkage of the two largest glaciers in Glacier National Park
Author:
Johnson, Arthur, 1903-
Personal Author:
Publication Information:
Washington : U.S. Govt. Print. Off., 1980.
Physical Description:
vi, 29 pages : illustrations, maps (2 folded color in pocket) ; 29 cm.
Language:
English
Format :
Book