Simpson, I.S. <br/><br/>
Basic Statistics for librarians 
/ by I.S.Simpson 
 - 3rd ed. 
 - London;  Library Association Publishing:  1988. 
 - xiv, 242p. 
<br/><br/><label>ISBN: </label>0838921000 
<br/><br/><label>Dewey Class. No.: </label>025.17021  / SIM/B