@book{18176,
	author = {Crompton, David W. T. and World Health Organization.},
	title = {Preventive chemotherapy in human helminthiasis : },
	publisher = {World Health Organization,},
	year = {2006.},
	address = {Geneva : },
	note = {"A first draft of this manual was prepared by the World Health Organization (WHO) in consultation with Professor David Crompton..."--Preface.}
}