Volcanoes /
by Franklyn M. Branley ; illustrated by Marc Simont.
- 1st ed.
- New York : Crowell, c1985.
- 32 p. : col. ill. ; 19 x 24 cm.
- Let's-read-and-find-out science book .
Explains how volcanoes are formed and how they affect the earth when they erupt.