@book{20782,
	author = {Ferguson, Arthur Wesley},
	title = {Professional staff of state departments of education /},
	publisher = {G.P.O.,},
	year = {1925.},
	series = {Bulletin / Department of the Interior, Bureau of Education ;},
	address = {Washington :},
	note = {Published also as thesis (Ph. D.), University of Pennsylvania, 1925.}
}