Simpson, I.S.. <br/><br/>
Basic Statistics for librarians /  

 - 1st ed /  
 - London W11 :   Clive Bingley Ltd. ,   1981 
 - p110 :  
<br/><br/><label>ISBN: </label>0-85157-187-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library Statistics
<br/><br/><label>Dewey Class. No.: </label>2:(B28)  / L5