Lawrence, J.E.S.

Lawrence, J.E.S., Tomaro, J.B. & Braddy, B.A., 1988. Human resource development planning : guidelines for the water supply and sanitation sector, (Wash technical report no. 20) Arlington, VA, USA: Water and Sanitation for Health Project (WASH). Available at: https://fr.ircwash.org/sites/default/files/204.1-3409.pdf.