Rickmers, Albert D. <br/><br/>
Statistics :  an introduction / 
by Albert D. Rickmers and Hollis N. Todd. 
 - New York, N.Y. :  McGraw-Hill,  1967. 
 - xiv, 585 p. 
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Վիճակագրություն