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.