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Tyrrel, S.

Carter, R., Howsam, P. & Tyrrel, S., 1999. Assumptions and realities in water and sanitation programmes. , ppp. 2-5 : 1 box, 1 photogr., 2 tab. Available at: https://pt.ircwash.org/sites/default/files/Carter-1999-Assumptions.pdf.

Published on: 01/01/1970

Water supply and sanitation programmes are based on many assumptions. Whilst there is much that is truth, the need to question them has never been...

Carter, R. et al., 1998. Biological removal of iron from well-handpump water supplies. , ppp. 29-31 : 2 fig., 3 photogr. Available at: https://pt.ircwash.org/sites/default/files/Tyrrel-1998-Biological.pdf.

Published on: 30/12/2004

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