APA

Underwood R., . (1974). Current overseas practice on the provision of services centres on freeways (Australian Road Research Board Conference. 7, paper nr A4). Kew, Vict: National Ass. of Australian State Road Authorities. TRN nr 729.

Chicago

Underwood RT, . 1974. Current overseas practice on the provision of services centres on freeways (Australian Road Research Board Conference. 7, paper nr A4). Kew, Vict: National Ass. of Australian State Road Authorities. TRN nr 729.

Harvard

Underwood R., . (1974). Current overseas practice on the provision of services centres on freeways (Australian Road Research Board Conference. 7, paper nr A4). Kew, Vict: National Ass. of Australian State Road Authorities. TRN nr 729.

MLA

Underwood RT, . Current overseas practice on the provision of services centres on freeways (Australian Road Research Board Conference. 7, paper nr A4). Kew, Vict: National Ass. of Australian State Road Authorities. TRN nr 729. 1974.