Johnson, Palmer O. <br/><br/>
Statistical methods in research / 
by Palmer O. Johnson. 
 - New York :  Prentice-Hall,  1949. 
 - xvi, 377 p. : 
<br/><br/><label>ISBN: </label>ISBNSc1431 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematical statistics
<br/><br/><label>Dewey Class. No.: </label>519.5  / St