Bell, Norman T. <br/><br/>
Developing audio-visual instructional modules for vocational and technical training / 
Norman T. Bell and Allan J. Abedor 
 - Englewood Cliffs, N.J. :  Educational Technology Publications,  1977 
 - xi, 168 p. ;  28 cm. 
<br/><br/>Bibliography : p. 163-164 
<br/><br/><label>ISBN: </label>0877780943 
<br/><br/><label>LCCN: </label>76-050019 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vocational education--Audio-visual aids<br/>Technical education--Audio-visual aids