00608nam a2200205Ia 450000500170000000800410001704000190005804100120007708200160008910000180010524500730012325000430019626000290023930000140026844000330028265000230031565100340033870000200037285000100039220240316095359.0131103s9999 xx 000 0 und d aLoreto College aEnglish a374.4 bHAR aHarris,W.J.A. 2aA Handbook on Distance Education, cW.J.A.Harris & J.D.S.Williams aPreface and appendix by C.J.J.Wiedhaup a[s.l.]b[s.n.]c[19 - ?] avi,77 p.  aManchester Monographys; No.7 aDistance Education aHandbook - Distance Education aWilliams,J.D.S. aLCLIB