Schumann, D. E. W.  1920- <br/><br/>
Elementêre statistiek :  beskrywende metodes / 
D.E.W. Schumann, B. Bouwer, H.S. Schoeman. 
 - New York :  McGraw-Hill,  c1974. 
 - 247 pages 
<br/><br/><label>ISBN: </label>0070912475 9780070912472 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistics.
<br/><br/><label>Dewey Class. No.: </label>519.5