the essential guide Williams, Marcia L. creator Paprock, Kenneth. Covington, Barbara. text bibliography cau Thousand Oaks, Calif Sage c1999 1999 monographic eng

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166 p. ; 23 cm. Marcia L. Williams, Kenneth Paprock, Barbara Covington. Includes bibliographical references (p. 157-159) and index. n-us--- Distance education United States Telecommunication in education LC 5805 .W55 1999 0761914412 0761914420 (pbk.) 98233173 http://www.loc.gov/catdir/enhancements/fy0656/98233173-d.html http://www.loc.gov/catdir/enhancements/fy0656/98233173-t.html http://www.loc.gov/catdir/enhancements/fy0656/98233173-d.html http://www.loc.gov/catdir/enhancements/fy0656/98233173-t.html WaPS 981211 20230123105702.0 4518363