The selection system of silviculture in spruce-fir stands :
procedures, early results, and comparisons with unmanaged stands /
by Robert M. Frank and Barton M. Blum.

APA Citation

Frank, R. M., Blum, B. M., Northeastern Forest Experiment Station (Radnor, P., United States. Forest Service. (1978). The selection system of silviculture in spruce-fir stands: procedures, early results, and comparisons with unmanaged stands. Broomall, Pa.: Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station.

MLA Citation

Frank, Robert M, Barton M Blum, Pa.) Northeastern Forest Experiment Station (Radnor, and United States. Forest Service. The Selection System of Silviculture In Spruce-fir Stands: Procedures, Early Results, And Comparisons With Unmanaged Stands. Broomall, Pa.: Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1978.