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	1.	No cover image available 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 / by Arthur Johnson by Johnson, Arthur, 1903- United States. Department of Interior Series: Geological Survey professional paper ; 1180 Material type: Text; Format: print ; Literary form: Not fiction Language: English Publication details: Washington, D. C. : U.S. Government Printing Office, 1980 Availability: Items available for loan: National Library of India (1)Call number: U.S 508.978652 J 63. Place hold Request article Save to lists
	2.	No cover image available 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 / by Arthur Johnson by Johnson, Arthur, 1903- United States Dept. of Interior Series: Geological Survey professional paper ; 1180 Material type: Text; Format: print ; Literary form: Not fiction Language: English Publication details: Washington, D.C : United States Government of Printing Office, 1980 Availability: Items available for loan: National Library of India (1)Call number: U.S 551.3120978652 J 63 (pap.no.1180). Place hold Request article Save to lists

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