AVC informa :  boletín de Audiovisual Concepts, Inc. 

 - volumes :  illustrations (black and white) ;  28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Audiovisual.--Puerto Rico--Periodicals <br/>Audiovisual equipment--Puerto Rico--Periodicals
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Puerto Rico--Periodicals.