Author
Carl, Clayton M
1
Donnelly, John R
1
Halverson, Howard G.
1
Mendel, Joseph J.
1
Northeastern Forest Experiment Station (Radnor, Pa.)
2
Post, Boyd W
1
Stout, Benjamin B.
1
Trimble, G.R.
1
Trimble, George R. Jr
1
U.S. Department of Agriculture. Northeastern Forest Experiment Station
1
United States Department of Agriculture
1
United States. Forest Service
1
Zisa, Robert P.
1