Boesch, A.

Boesch, A. & Schertenleib, R., 1985. Emptying on-site excreta disposal systems : field tests with mechanized equipment in Gaborone (Botswana), (IRCWD report no. 03/85) Duebendorf, Switzerland: International Reference Centre for Waste Disposal. Available at: https://pt.ircwash.org/sites/default/files/321.4-85EM-2161.pdf.