Simpson, R.S. <br/><br/>
Effective audio visual  a user handbook 

 - Focal press  London  1987 
 - 215p. 
 - Audiovisual Materials 
<br/><br/><label>ISBN: </label>0-240-51524-5 
<br/><br/><label>Nat. Bib. No.: </label>4982 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>659.148(02)SIM 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Management<br/>Public relations
<br/><br/><label>Universal Decimal Class. No.: </label>659.148(02)