R. M. Olson ... [and others] ; research sponsored by the American Association of State Highway and Transportation Officials in cooperation with the Federal Highway Administration
Date
1974
Series
Report (National Cooperative Highway Research Program); 150
Marvin L. Manheim ... [and others] research sponsored by the American Association of State Highway and Transportation Officials ; in cooperation with the Federal Highway Administration
Date
1975
Series
Report (National Cooperative Highway Research Program); 156