Author
North Central Forest Experiment Station (Saint Paul, Minn.)
2
Blum, Barton M.
1
Erdmann, Gayne G.
1
Metzger, Frederick T.
1
Northeastern Forest Experiment Station (Radnor, Pa.)
1
Oberg, Robert R.
1
Rogers, Robert, 1941-
1
Sonderman, David L.
1
United States. Forest Service
1
United States. Forest Service, Northeastern Forest Experiment Station
1