Guidelines for audiovisual materials & services for public libraries. 

 - Chicago  American Library Association  1970. 
 - ix, 33 p.. 
<br/><br/> 920529 
<br/><br/><label>ISBN: </label>
<br/><br/><label>LCCN: </label>74121113  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Audio-visual library service
<br/><br/><label>LC Class. No.: </label>Z717  / .A69 
<br/><br/><label>Dewey Class. No.: </label>025.17/7