A time study of shearing wild stands of Douglas-fir Christmas trees
By: by William H. Covey.
Contributors: Montana State University (Missoula). School of Forestry.
Series: Bulletin / School of Forestry, Montana State University -- no. 12.; Bulletin (Montana State University (Missoula). School of Forestry) -- no. 12.
Publisher: School of Forestry, Montana State University
Published: 1960
Place of publication: Missoula, Mont
Language: eng
Number of pages: 14
Subjects: Douglas fir -- Pruning -- Montana.; Christmas tree growing -- Montana.
Notes: Cover title.

"From: Master thesis of William H. Covey, 1957"--[p. 1].

Includes bibliographical references (p. 13-14).