Black, M. (1990). From handpumps to health: The evolution of water and sanitation programmes in Bangladesh, India and Nigeria. United Nations Children's Fund.
Chicago-Zitierstil (17. Ausg.)Black, Maggie. From Handpumps to Health: The Evolution of Water and Sanitation Programmes in Bangladesh, India and Nigeria. New York, NY: United Nations Children's Fund, 1990.
MLA-Zitierstil (9. Ausg.)Black, Maggie. From Handpumps to Health: The Evolution of Water and Sanitation Programmes in Bangladesh, India and Nigeria. United Nations Children's Fund, 1990.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.