Pettit, J.

Rosensweig, F. & Pettit, J., 1985. Near East Bureau Water/Wastewater Conference Sousse, Tunisia April 15-18 1985, (Wash field report no. 149) Arlington, VA, USA: Water and Sanitation for Health Project (WASH). Available at: https://fr.ircwash.org/sites/default/files/71AID85-2123.pdf.