Ecological forestry for the Douglas fir region
By: [by] Peter A. Twight.
Contributors: National Parks and Conservation Association.
Publisher: National Parks and Conservation Association
Published: 1973
Place of publication: Washington
Language: eng
Number of pages: 16
Subjects: Douglas fir -- Northwest, Pacific.; Forests and forestry -- Northwest, Pacific.; Forest ecology -- Northwest, Pacific.; Forest conservation -- Northwest, Pacific.
Notes: Bibliography: p. 15-16.
Cover title.