International Development Research Centre (Canada) & Canadian International Development Agency. (1981). Sanitation in developing countries: Proceedings of a worksop on training held in Lobatse, Botswana, 14-20 August 1980. IDRC.
Lua i Stíl Chicago (17ú heag.)International Development Research Centre (Canada) agus Canadian International Development Agency. Sanitation in Developing Countries: Proceedings of a Worksop on Training Held in Lobatse, Botswana, 14-20 August 1980. Ottawa, Canada: IDRC, 1981.
Lua MLA (9ú heag.)International Development Research Centre (Canada) agus Canadian International Development Agency. Sanitation in Developing Countries: Proceedings of a Worksop on Training Held in Lobatse, Botswana, 14-20 August 1980. IDRC, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.