An Engelmann spruce seed source study in the central Rockies
By: Wayne D. Shepperd, Richard M. Jeffers, and Frank Ronco, Jr
Contributors: Jeffers, Richard M; Ronco, Frank; Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.)
Series: Research paper RM -- 231
Publisher: Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
Published: 1981
Place of publication: Fort Collins, Colo
Language: eng
Subjects: Engelmann spruce; Trees -- Seedlings; Trees -- Rocky Mountains -- Growth
Notes: "July 1981"--P. [2] of cover

Bibliography: p. 5