Mechanized thinning of northern hardwood pole stands
Subtitle: methods and economics
By: Frank E. Biltonen ... [et al.]
Contributors: Biltonen, Frank E; North Central Forest Experiment Station (Saint Paul, Minn.); United States. Forest Service
Series: USDA Forest Service research paper NC ; 137; USDA Forest Service research paper NC -- 137
Publisher: Dept. of Agriculture, Forest Service, North Central Forest Experiment Station
Published: 1976
Place of publication: [St. Paul]
Language: eng
Number of pages: 17
Subjects: Forest thinning; Hardwoods
Notes: Cover title

Bibliography: p. 16-17