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Filters: Keyword is hand pumps and Author is Visscher, J.T.  [Clear All Filters]
Visscher, J.T., Werff, K. van der, y SNV -The Hague, NL, «Towards sustainable water supply : eight years of experience from Guinea-Bissau», vol. no. 1-E. IRC, The Hague, The Netherlands, p. x, 60 p.: 7 fig., 15 tab., 1995.
Wijk-Sijbesma, C.A. van y Visscher, J.T., «Handpump projects : avoiding neglect», World water, pp. p. 44-46: photogr., 1987.
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