Biblio

P. Cross and Coombes, Y., Sanitation and hygiene in Africa : where do we stand? : analysis from the AfricaSan Conference, Kigali, Rwanda. London, UK: IWA Publishing, 2014, p. xiv, 191 p. : fig., tab.

P. Cross, “Communications support for sanitation programmes : a guide to issues, methods and implementation procedures”. International Reference Centre for Waste Disposal, Duebendorf, Switzerland, p. v, 114 p.: fig., tab., 1982.