@book{10689,
	author = {Harris,W.J.A. and Williams,J.D.S.},
	title = {A Handbook on Distance Education,    },
	publisher = {[s.n.]},
	year = {[19 - ?]},
	address = {[s.l.]},
	edition = {Preface and appendix by C.J.J.Wiedhaup}
}