Barks, Robert A. <br/><br/>
Descriptive statistics and probability theory 
by Robert A.Barks 
 - London  Hutchinson educational  1972 
 - xv, 194p.; 20 cm. 
<br/><br/><label>ISBN: </label>0091126111 
<br/><br/><label>Dewey Class. No.: </label>519.53  /  BAR