A field guide to Western trees
Subtitle: Western United States and Canada
By: by George A. Petrides ; illustrated by Olivia Petrides
Edition: Fiftieth anniversary ed.
Series: Roger Tory Peterson field guides
Publisher: Easton Press
Published: 1992
Place of publication: Norwalk, Conn
Language: eng
Number of pages: 308
Subjects: Trees; Identification
Other titles: Western trees.
Notes: Cover and spine title: Western trees.

"Sponsored by the National Audubon Society, the National Wildlife Federation, and the Roger Tory Peterson Institute."

"Collectors lifetime edition, bound in genuine leather."

Includes index.