Williams, Joel <br/><br/>
Library statistics: a handbook of concepts, definitions,anmd terminology 

 - Chicago  American Library Association  1966 
 - 160p. p. 
<br/><br/><label>LC Class. No.: </label>2:f:(B28) 	  /  K6	 
<br/><br/><label>Dewey Class. No.: </label>025.58  / WIL.J