Allowable bending stresses of wood for use in portable wood ladders /

Bibliographic Details
Main Author:	Werren, Fred
Corporate Authors:	Forest Products Laboratory (U.S.), United States. Forest Service
Format:	Government Document Book
Language:	English
Published:	Madison, Wis. : Dept. of Agriculture, Forest Service, Forest Products Laboratory, 1975.
Series:	U.S.D.A. Forest Service general technical report FPL ; 5.
Subjects:	Strains and stresses. Ladders > Standards. Wood.

Description
Item Description:	Cover title.
Physical Description:	6 pages ; 26 cm.