@book{7930,
	author = {WHO Expert Committee on Health Statistics (1967 : Geneva). and World Health Organization},
	title = {Morbidity statistics : twelfth report of the WHO Expert Committee on Health Statistics [meeting held in Geneva from 7 to 13 November 1967].},
	publisher = {World Health Organization,},
	year = {1968.},
	series = {(WHO technical report series ; 389)},
	address = {Geneva : }
}