Seed distribution in the swath from helicopter sowing
By: George C. Edmunson, Lisle R. Green, Jay R. Bentley
Contributors: Green, Lisle R.; Bentley, Jay R. (Jay Russell), 1911-; Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.); California Forest and Range Experiment Station
Series: Research note / Pacific Southwest Forest and Range Experiment Station -- 190; Research note / California Forest and Range Experiment Station -- no. 190; Research note (California Forest and Range Experiment Station) -- no. 190.
Publisher: California Forest and Range Experiment Station
Published: 1961
Place of publication: Berkeley, Calif
Language: eng
Subjects: Aeronautics in forestry
Notes: Caption title.

"September 1961."