Growth of Douglas fir trees of known seed source
By: by Thornton T. Munger.
Contributors: United States. Dept. of Agriculture.
Series: Technical bulletin / United States Department of Agriculture -- no. 537; Technical bulletin (United States. Dept. of Agriculture) -- no. 537.
Publisher: U.S. Dept. of Agriculture
Published: 1936
Place of publication: Washington
Language: eng
Number of pages: 40
Subjects: Douglas fir.
Notes: Caption title.

Literature cited: p. 40.