Niven, D. (David).

Lae traffic survey, August-September 1973 / D. Niven. - [Lae] : Papua New Guinea University of Technology, 1974. - 2, [3] leaves. - Occasional research and technical bulletin ; no. R12/74 . - Research and technical report (Papua New Guinea University of Technology) ; R12/74 .


Traffic surveys--Papua New Guinea--Lae.
Traffic flow--Papua New Guinea--Lae.