@book{3407,
	author = {Detinova T S, Bertram D.S.},
	title = {Age-grouping methods in depteria of medical importance, with special reference to some vectors of malaria.},
	publisher = {World Health Organization,},
	year = {1962.},
	series = {(WHO monograph series ; no. 47).},
	address = {Geneva : }
}