@book{90273,
	author = {Wilson, Graham S. and Twigg, R. S.},
	title = {The bacteriological grading of milk,},
	publisher = {H. M. Stationery Office,},
	year = {1935.},
	series = {Medical Research Council (Gt. Britain) Special report series,},
	address = {London,},
	note = {At head of title: ... Privy Council. Medical Research Council.}
}