@book{19576,
	author = {Sies, Raymond W.},
	title = {Teachers' pension systems in Great Britain /},
	publisher = {G.P.O.,},
	year = {1913.},
	series = {Bulletin / U.S. Bureau of Education ;},
	address = {Washington :},
	note = {Published also as a thesis (Ph. D.), Columbia University, 1913.}
}