1953 flower production of coniferous trees
By: by Wilbur H. Engstrom.
Contributors: Oregon State Board of Forestry.
Series: Research note -- no. 12.; Research notes (Oregon State Board of Forestry) -- no. 12.
Publisher: Oregon State Board of Forestry
Published: 1953
Place of publication: Salem, Or
Language: eng
Subjects: Conifers -- Oregon -- Flowering.; Conifers -- Seeds -- Yields -- Oregon -- Forecasting.
Notes: Cover title.

"July 1953."