APA

Ker I., . (1977). Research into road vehicle operating costs and its application in Australian conditions. Vermont South, Vict: Australian Road Research Board. RR 77.

Chicago

Ker IR, . 1977. Research into road vehicle operating costs and its application in Australian conditions. Vermont South, Vict: Australian Road Research Board. RR 77.

Harvard

Ker I., . (1977). Research into road vehicle operating costs and its application in Australian conditions. Vermont South, Vict: Australian Road Research Board. RR 77.

MLA

Ker IR, . Research into road vehicle operating costs and its application in Australian conditions. Vermont South, Vict: Australian Road Research Board. RR 77. 1977.