Rooting cuttings from Douglas-fir, white fir, and California red fir for Christmas trees
By: C.M. Blankensop and R.Z. Callaham
Contributors: Callaham, Robert Z., joint author; 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. 160; Research note (California Forest and Range Experiment Station) -- no. 160.
Publisher: California Forest and Range Experiment Station
Published: 1960
Place of publication: Berkeley, Calif
Language: eng
Subjects: Christmas tree industry
Notes: Caption title.

"June 1960."