Glaciers /
by Wendell V. Tangborn ; illustrated by Marc Simont.
- Rev. ed.
- New York : T.Y. Crowell, c1988.
- 32 p. : col. ill. ; 19 x 24 cm.
- Let's-read-and-find-out science book .
Explains how and where glaciers form, how they move, and how they shape the land.