Small seed traps perform well in the Douglas-fir type of California
By: D.F. Roy
Contributors: Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.); California Forest and Range Experiment Station
Series: Research note / California Forest and Range Experiment Station -- no. 150; Research note (California Forest and Range Experiment Station) -- no. 150.
Publisher: California Forest and Range Experiment Station
Published: 1959
Place of publication: Berkeley, Calif
Language: eng
Subjects: Seeds; Douglas fir; Harvesting
Notes: Caption title.

"April 1959."

Includes bibliographical references (p. 7).