Distance learning : the essential guide

Marcia L. Williams, Kenneth Paprock, Barbara Covington
Bok · Engelsk · 1999 Marcia L Williams

Utgitt	Thousand Oaks, Calif. : Sage , c1999
Omfang	166 s. : ill.
Emner	Distance education - United States Telecommunication in education fjernundervisning
ISBN	0761914412. - 0761914420