Description
Item Description:"Joint highway research project, project C-36-67B, file 9-11-2."
Prepared as part of an investigation conducted by the joint highway research project of the Engineering Experiment Station, Purdue University, in cooperation with Indiana State Highway Commission and the U.S. Bureau of Public Roads.
Physical Description:iii, 73 pages : illustrations ; 28 cm.
Bibliography:Bibliography: pages 71-72.