APA

National Institute for Transport and Road Research South Africa. Technical report nr RI/1/77, . (1977). Publication list. Pretoria: National Institute for Transport and Road Research South Africa. Technical report nr RI/1/77.

Chicago

National Institute for Transport and Road Research South Africa. Technical report nr RI/1/77, . 1977. Publication list. Pretoria: National Institute for Transport and Road Research South Africa. Technical report nr RI/1/77.

Harvard

National Institute for Transport and Road Research South Africa. Technical report nr RI/1/77, . (1977). Publication list. Pretoria: National Institute for Transport and Road Research South Africa. Technical report nr RI/1/77.

MLA

National Institute for Transport and Road Research South Africa. Technical report nr RI/1/77, . Publication list. Pretoria: National Institute for Transport and Road Research South Africa. Technical report nr RI/1/77. 1977.