Pacific Northwest ecoclass codes for plant associations
By: Frederick C. Hall.
Contributors: United States. Forest Service. Pacific Northwest Region.
Edition: [6th ed.?].
Series: R6 Ecol. technical paper -- 289-87.; R6-ECOL-TP -- 289-87.
Publisher: USDA, Forest Service, Pacific Northwest Region
Published: 1988
Place of publication: [Portland, Or.?]
Language: eng
Number of pages: 164
Subjects: Vegetation classification -- Northwest, Pacific.; Vegetation surveys -- Northwest, Pacific.; Botany -- Northwest, Pacific.
Notes: Shipping list no.: 89-133-P.

"November 1988 (last update January 1984)."

Includes bibliographical references.