Surface condition rating system /
research conducted by the Civil and Mineral Engineering Department, University of Minnesota.

APA Citation

National Cooperative Highway Research Program., National Research Council (U.S.). Highway Research Board., University of Minnesota. Dept. of Civil and Mineral Engineering. (1973). Surface condition rating system. Washington, D.C.: Highway Research Board.

MLA Citation

National Cooperative Highway Research Program, National Research Council (U.S.). Highway Research Board, and University of Minnesota. Dept. of Civil and Mineral Engineering. Surface Condition Rating System. Washington, D.C.: Highway Research Board, 1973.