A successful direct seeding of sugar pine
By: by William I. Stein.
Contributors: Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Series: Research paper -- no. 25.; Research paper (Pacific Northwest Forest and Range Experiment Station (Portland, Or.)) -- no. 25.
Publisher: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station
Published: 1957
Place of publication: [Portland, Or
Language: eng
Number of pages: 19
Subjects: Sugar pine -- Sowing -- Oregon -- Zinc Creek Watershed.; Reforestation -- Oregon -- Zinc Creek Watershed.
Notes: "September 1957."

Also issued online.