Gaya APA

Black, M. (1990). From Handpumps to Health : The Evaluation of Watter and Sanitation Programmes in Bangladesh, India and Nigeria . New York: United Nations Children\'s Fund.

Gaya MLA

Black, Maggie. "From Handpumps to Health : The Evaluation of Watter and Sanitation Programmes in Bangladesh, India and Nigeria". New York: United Nations Children\'s Fund, 1990. print.