Mechanized thinning of northern hardwood pole stands :
methods and economics /
Frank E. Biltonen ... [et al.].

APA Citation

Biltonen, F. E., United States. Forest Service., North Central Forest Experiment Station (Saint Paul, M. (1976). Mechanized thinning of northern hardwood pole stands: methods and economics. [St. Paul]: Dept. of Agriculture, Forest Service, North Central Forest Experiment Station.

MLA Citation

Biltonen, Frank E, United States. Forest Service, and Minn.) North Central Forest Experiment Station (Saint Paul. Mechanized Thinning of Northern Hardwood Pole Stands: Methods And Economics. [St. Paul]: Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1976.