pioneer exotic tree search for the douglas fir region
By: Roy R. Silen and Donald L. Olson.
Contributors: Olson, Donald F.; Pacific Northwest Research Station (Portland, Or.)
Series: General technical report PNW -- GTR-298; General technical report PNW -- 298.
Publisher: U.S. Dept. of Agriculture, Pacific Northwest Research Station
Published: 1992
Place of publication: Portland, Or
Language: eng
Number of pages: 44
Subjects: Plant introduction -- United States; Forest genetics -- United States; Exotic forestry -- United States; Douglas fir -- United States
Notes: "March 1992."

Includes bibliographical references (p. 33-34).

Gift of anonymous donor.