Johnson, Palmer O.  1891-1960 <br/><br/>
Statistical methods in research / 
Palmer O. Johnson. 
 - New York :  Prentice-Hall,  1949 [Printed 1950, 1961] 
 - xvi, 377 p. :  diagrs. ;  24 cm. 
<br/><br/>Includes "References." 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematical statistics.<br/>Research.<br/>Probabilities.
<br/><br/><label>Dewey Class. No.: </label>519.5  / JOS 1961