Basic grading rules and working stresses for structural timbers
Subtitle: as recommended by the Department of Agriculture
By: J.A. Newlin and R.P.A. Johnson
Contributors: Johnson, R. P. A. (Robert Pilson Albert), 1888-
Series: Department circular / United States Department of Agriculture -- 295; Department circular (United States. Dept. of Agriculture) -- 295.
Publisher: U.S. Dept. of Agriculture
Published: 1923
Place of publication: Washington, D.C
Language: eng
Number of pages: 23
Subjects: Wood; Standards
Notes: Caption title.

Includes bibliographical references.