A survey of factors affecting regeneration of Rocky Mountain Douglas-fir
By: Russell A. Ryker.
Contributors: Intermountain Forest and Range Experiment Station (Ogden, Utah); United States. Forest Service.
Series: USDA Forest Service research paper INT -- 174.
Publisher: Intermountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
Published: 1975
Place of publication: Ogden, Utah
Language: eng
Number of pages: 18
Subjects: Douglas fir -- Rocky Mountains Region.; Reforestation -- United States.; Tree planting -- United States.; Trees -- Rocky Mountains Region. -- Growth.
Notes: Appendices.

Item 83-B.

Bibliography: p. 16-17.