Snowball, George J. <br/><br/>
information 
/ library statistics as a management aid: a graphic presentation: alternative solutions 
<br/><br/> Sobretiro de: Special Libraries Oct. 1972:443-447 
<br/><br/><label>LCCN: </label>56550 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bibliotecas--Estadísticas.