A field guide to western trees
Subtitle: Western United States and Canada
By: George A. Petrides ; illustrated by Olivia Petrides.
Contributors: Petrides, Olivia.
Series: The Peterson field guide series ;; 44
Publisher: Houghton Mifflin Co.
Published: 1992
Place of publication: Boston
Language: eng
Number of pages: 308
Subjects: Trees -- West (U.S.) -- Identification.; Trees -- Canada, Western -- Identification.; Trees -- West (U.S.) -- Pictorial works.; Trees -- Canada, Western -- Pictorial works.
Notes: Includes bibliographical references (p. 293-296) and index.
"Sponsored by the National Audubon Society, the National Wildlife Federation, and the Roger Tory Peterson Institute."