Distance education :
Verduin, John R.
Distance education : the foundations of effective practice / John R. Verduin Jr., Thomas A. Clark. - San Francisco : Jossey-Bass, 1991. - xvi, 279p : ill. ; 22cm. - Jossey-Bass higher and adult education series .
Includes bibliographical references and index.
Open access.
155542306X
9046107
Distance education.
Distance education : the foundations of effective practice / John R. Verduin Jr., Thomas A. Clark. - San Francisco : Jossey-Bass, 1991. - xvi, 279p : ill. ; 22cm. - Jossey-Bass higher and adult education series .
Includes bibliographical references and index.
Open access.
155542306X
9046107
Distance education.