@book{7477,
	author = {World Health Organization Study Group on General Requirements for the Sterility of Biological Substances (1959 : Geneva).},
	title = {Requirements for biological substances 6 : general requirements for the sterility of biological substances : report of a study group [meeting held in Geneva from 20 to 25 April 1959].},
	publisher = {World Health Organization,},
	year = {1960.},
	series = {(WHO technical report series ; 200)},
	address = {Geneva : }
}