A silvicultural guide for spruce-fir in the northeast
By: by Robert M. Frank and John C. Bjorkbom.
Contributors: Bjorkbom, John C., 1915- joint author.
Series: USDA Forest Service general technical report NE -- 6.
Publisher: Forest Service, U.S. Dept. of Agriculture, Northeastern Forest Experiment Station
Published: 1973
Place of publication: Upper Darby, Pa
Language: eng
Number of pages: 29
Subjects: Spruce -- Northeastern States.; Fir.; Forest management -- Northeastern States.
Notes: Cover title.

Literature cited: p. 20.