Maintenance costs : presented at the twenty-ninth annual meeting 1949

National Research Council, Highway Research Board, USA | TIBKAT | 1950

Reflectors and night visibility : presented at the twenty-ninth annual meeting 1949

National Research Council, Highway Research Board, USA | TIBKAT | 1951

Soil exploration and mapping : presented at the twenty-ninth annual meeting 1949

National Research Council, Highway Research Board, USA | TIBKAT | 1950

Use of parking meter revenues : presented at the twenty-ninth annual meeting 1949

Levin, David R. / National Research Council, Highway Research Board, USA | TIBKAT | 1951

Stress distribution in a homogeneous soil : presented at the twenty-ninth annual meeting 1949

Foster, Charles R. / Fergus, S. M. | TIBKAT | 1951