APA

PIARC. World road congress 17 S. A. 8. O. 1. Q. V., . (1983). Roads in developing areas. Paris: PIARC. World road congress 17, Sydney, Australia, 8-15 October 1983. Question V.

Chicago

PIARC. World road congress 17 Sydney Australia 8-15 October 1983 Question V, . 1983. Roads in developing areas. Paris: PIARC. World road congress 17, Sydney, Australia, 8-15 October 1983. Question V.

Harvard

PIARC. World road congress 17 S. A. 8. O. 1. Q. V., . (1983). Roads in developing areas. Paris: PIARC. World road congress 17, Sydney, Australia, 8-15 October 1983. Question V.

MLA

PIARC. World road congress 17 Sydney Australia 8-15 October 1983 Question V, . Roads in developing areas. Paris: PIARC. World road congress 17, Sydney, Australia, 8-15 October 1983. Question V. 1983.