Description
Item Description:Title from title page of PDF document (viewed Mar. 25, 2009).
At head of title: National Cooperative Highway Research Program.
"Research sponsored by the American Association of State Highway and Transportation Officials in cooperation with the Federal Highway Administration."
Electronic resource.
Physical Description:1 online resource (137 pages) : illustrations, PDF file.
Bibliography:Includes bibliographical references.
ISBN:9781621982784
1621982785
ISSN:0077-5614 ;