Lechtig, A.

Lechtig, A. & Doyle, B.A., 1996. The impact of water and sanitation on malnutrition and under 5 mortality rates : the need for an integrated approach. , p.p. 5, 16-19 : 5 fig. Available at: https://fr.ircwash.org/sites/default/files/Lechtig-1996-Impact.pdf.