Pendulum impact tests of wooden and steel highway guardrail posts /

Bibliographic Details
Main Author:	Gatchell, Charles J.
Other Authors:	Michie, Jarvis Dale
Format:	Government Document Book
Language:	English
Published:	Upper Darby, Pa. : Forest Service, U.S. Dept. of Agriculture, Northeastern Forest Experiment Station, 1974.
Series:	USDA Forest Service research paper NE ; 311.
Subjects:	Roads > Guard fences > Testing.

Description
Physical Description:	20 pages : illustrations ; 27 cm.