Twenty-year results of the Lake States jack pine seed source study
By: Richard M. Jeffers, Raymond A. Jensen.
Contributors: Jensen, Raymond A.; North Central Forest Experiment Station (Saint Paul, Minn.); United States. Forest Service.
Series: Research paper NC -- 181.
Publisher: North Central Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture
Published: 1980
Place of publication: [Saint Paul, Minn.]
Language: eng
Number of pages: 20
Subjects: Jack pine -- Seeds; Seeds -- Michigan -- Testing; Seeds -- Minnesota -- Testing; Seeds -- Wisconsin -- Testing
Other titles: Twenty year results of the Lake States jack pine seed source study.
Notes: Cover title.

Bibliography: p. 19-20.