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Filters: Author is Wijk-Sijbesma, C.A. van  [Clear All Filters]
1982
Wijk-Sijbesma, C.A. van y Heijnen, H.A., «Report on the slow sand filtration demonstration projects in Colombia», vol. no. 19. IRC, The Hague, The Netherlands, p. 78 p. + 23 p. ann.: fig., tab., photogr., 1982.
1981
Wijk-Sijbesma, C.A. van, Participation and education in community water supply and sanitation programmes : a literature review, 2nd rev. ed.ª ed., vol. no. 12. The Hague, The Netherlands: IRC, 1981, p. 222 p.: photogr., tab.
0
Wijk-Sijbesma, C.A. van, «HIV/AIDS and water supply, sanitation, hygiene». Water, Engineering and Development Centre, Loughborough University of Technology, WEDC, Loughborough, UK, p. 4 pag. : 1 fig.

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