@book{27636,
	author = {Brooke, Christopher Nugent Lawrence.},
	title = {The structure of medieval society},
	publisher = {McGraw-Hill},
	year = {[1971]},
	series = {Library of medieval civilization},
	address = {New York},
	note = {A revision and enlargement of the first chapter in The flowering of the Middle Ages, edited by J. Evans, originally published in 1966.}
}