When you find a rock
Subtitle: a field guide
By: by Barrie Klaits ; photos. by Pelle Cass.
Contributors: Cass, Pelle.
Publisher: Macmillan
Published: 1976
Place of publication: New York
Language: eng
Number of pages: 58
Subjects: Rocks -- Juvenile literature.; Rocks.
Description: An introduction to the rocks most commonly found in North America, what they are, how they are formed, and how to identify them.
Notes: Bibliography: p. 55-56.
Includes index.