World BankJourney, W.K.2007-11-121976-04-012007-11-121976http://hdl.handle.net/10625/456IDRC personnel. Product design for plastics hand pump, i.e. hand tool, to increase water supply in rural areas of developing countries - discusses principal features of design.Text1 digital file (45 p. : ill.)Application/pdfenPRODUCT DESIGNPLASTICSPUMPSHAND TOOLSWATER SUPPLYWorking Paper