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.
| Author/creator | Johnson, Arthur |
| Format | Book |
| Publication Info | Washington : U.S. Govt. Print. Off, 1980. |
| Description | vi, 29 pages : illustrations, maps (2 folded color in pocket) ; 29 cm. |
| Subjects |
| Series | Geological Survey professional paper ; 1180 Geological Survey professional paper 1180. ^A16492 |
| Bibliography note | Bibliography: p. 29. |
| LCCN | 80607150 |
| Govt. docs number | I 1916: |