A design manual for water wheels : with details for applications to pumping water for village use and driving small machinery /
Ovens, William G.
A design manual for water wheels : with details for applications to pumping water for village use and driving small machinery / by William G. Ovens. - [Lae : Papua New Guinea University of Technology], 1974. - [58 leaves] : ill. - Occasional research and technical bulletin ; no. R20/74 .
Water-wheels--Papua New Guinea.
A design manual for water wheels : with details for applications to pumping water for village use and driving small machinery / by William G. Ovens. - [Lae : Papua New Guinea University of Technology], 1974. - [58 leaves] : ill. - Occasional research and technical bulletin ; no. R20/74 .
Water-wheels--Papua New Guinea.