Labour survey techniques 

 -  1964 
 - Its Pamphlet Series, 6 .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Labor Economics
<br/><br/><label>Dewey Class. No.: </label>X:9:U, K4/GD