Mara, D. D. (1982). Appropriate sanitation alternatives for low-income communities: A brief introduction. Transportation, Water and Telecommunications Dept., World Bank.
Chicago-Zitierstil (17. Ausg.)Mara, D. Duncan. Appropriate Sanitation Alternatives for Low-income Communities: A Brief Introduction. Washington, D.C: Transportation, Water and Telecommunications Dept., World Bank, 1982.
MLA-Zitierstil (9. Ausg.)Mara, D. Duncan. Appropriate Sanitation Alternatives for Low-income Communities: A Brief Introduction. Transportation, Water and Telecommunications Dept., World Bank, 1982.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.