APA

Visser A., . (1982). Correlation study of roughness measurements with an index obtained from a road profile measured with rod and level. Pretoria: National Institute for Transport and Road Research. Technical report RC/2/82.

Chicago

Visser AT, . 1982. Correlation study of roughness measurements with an index obtained from a road profile measured with rod and level. Pretoria: National Institute for Transport and Road Research. Technical report RC/2/82.

Harvard

Visser A., . (1982). Correlation study of roughness measurements with an index obtained from a road profile measured with rod and level. Pretoria: National Institute for Transport and Road Research. Technical report RC/2/82.

MLA

Visser AT, . Correlation study of roughness measurements with an index obtained from a road profile measured with rod and level. Pretoria: National Institute for Transport and Road Research. Technical report RC/2/82. 1982.