Geological investigation of the proposed Usino-Gogol River road, Madang, T.P.N.G. /
by J.C. Braybrooke.
- [Port Moresby] : Dept. of Lands, Surveys and Mines, Geological and Volcanological Branch, 1969.
- 11 leaves : map.
- Note on investigation; 69403. .
Roads--Papua New Guinea--Madang Province. Engineering geology--Papua New Guinea--Madang Province.