@book{8425,
	author = {Rybczynski, Witold. and Polprasert, Chongrak. and International Development Research Centre (Canada)},
	title = {Low-cost technology options for sanitation},
	publisher = {International Development Research Centre,},
	year = {c1978.},
	series = {IDRC ;},
	address = {[Ottawa, Canada :}
}