Vernon S Gerlach  Rob Melnick  Donald P Ely <br/><br/>
Teaching and media:   a systematic approach/ 
by Vernon S Gerlach ,Rob Melnick and Donald P Ely 
 - 2nd ed. 
 - New Jersey:  Prentice-Hall,  1980. 
 - 420p. 
<br/><br/><label>ISBN: </label>9780138913588 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education Audio Visual<br/>Teaching Instructional Aids<br/>Education<br/>Social Sciences
<br/><br/><label>Dewey Class. No.: </label>371.3  / VER/T