Development of cat logging in steep country
By: by Owen R. Christiansen.
Published: 1948
Language: eng
Number of pages: 22
Subjects: Logging -- Machinery.; Caterpillar tractors.
Notes: Typescript.

Includes mounted photographs.

From the Oregon State College School of Forestry collection of senior forestry papers, 1910-1956.

Includes bibliographical references (leaf [22]).