Harper, W. M. <br/><br/>
Statistics 

 - 3 ed. 
 - Plymout :  Macdonald & Evans,  1977 
 - 354 p.  : gráfs. 
 - The M&E handbook series .
 - The M&E handbook series .
<br/><br/><label>LCCN: </label>73930 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Estadística.
<br/><br/><label>Dewey Class. No.: </label>519.5  / H37 1977