Ray, William S.,  1917- <br/><br/>
Statistics in psychological research / 
by William Samuel Ray. 
 - New York :  Macmillan,  c1962. 
 - xi, 303 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and indexes. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology--Research.<br/>Statistics.
<br/><br/><label>Dewey Class. No.: </label>150.7253  / RAS 1962