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Gibson, U.P.

Gibson, U.P. & Singer, R.D., 1971. Manual de los pozos pequeños : localización, diseño, construcción, uso y conservación, Buenos Aires, Argentina: USAID. Available at: https://nl.ircwash.org/sites/default/files/212.5-69MA.pdf.

Publicatiedatum: 14/08/2007

Gibson, U.P. & Singer, R.D., 1969. Small wells manual : a manual of location, design, construction, use and maintenance, Washington, DC, USA: USAID. Available at: https://nl.ircwash.org/sites/default/files/212.5-69SM.pdf.

Publicatiedatum: 14/08/2007

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