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

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

Soil exploration and mapping : 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

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

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

Surface drainage : committe report and three papers presented at the twenty-ninth annual meeting 1949

TIBKAT | 1950