@book{30959,
	author = {Yau, Goh Sing. and International Development Research Centre (Canada)},
	title = {Laboratory and field testing of handpumps /},
	publisher = {International Development Research Centre,},
	year = {c1985.},
	series = {IDRC-TS ;},
	address = {Ottawa :},
	note = {Includes abstracts in French and Spanish.}
}