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by Lipkis, Andy
Los Angeles : Jeremy P. Tarcher, 1990.

by Zisa, Robert P.
Upper Darby, Pa. : U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1980.

Series: Forest Service research paper (Northeastern Forest Experiment Station) ; NE-451

Newton Square, PA : Delaware, OH : USDA Forest Service ; USDA Forest Service PUblications Distribution, [2002]

Series: General technical report (Northeastern Research Station) ; NE-290

by Wile, B. C.
[Ottawa] Canadian Forestry Service, 1978.

Series: Information report (Maritimes Forest Research Centre) ; M-X-88

Newtown Square, PA : U.S. Dept of Agriculture, Forest Service, Northern Research Station, 2013.

Series: Resource bulletin NRS ; 79.