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American woods.

[Washington, D.C.] : Forest Service, U.S. Dept. of Agriculture : For sale by the Supt. of Docs., U.S. G.P.O., [1984] 1984

An Engelmann spruce seed source study in the central Rockies

Shepperd, Wayne D.
Fort Collins, Colo. : Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, [1981] 1981

Experiments in the use of fertilizers in growing forest planting material at the Savenac Nursery

Wahlenberg, W. G. (William Gustavus)
Washington, D.C. : U.S. Dept. of Agriculture, 1930. 1930

Natural regeneration in Intermountain spruce-fir forests : a gradual process

Fiedler, Carl E.
Ogden, UT : U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1985. 1985

Natural regeneration of Engelmann spruce after clearcutting in the central Rocky Mountains in relati

Alexander, Robert R.
Fort Collins, Colo. : U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1984. 1984

Seedfall and establishment of Engelmann spruce and subalpine fir in clearcut openings in Colorado

Noble, Daniel L.
[Fort Collins, Colo.] : Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1978. 1978