Likert Rensis Ed. <br/><br/>
Some applications of behavioural research 

 - Switzerland  UNESCO            1957 
 - 333p  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology
<br/><br/><label>Dewey Class. No.: </label>SN1, J7