Godwin, Francis W, et al. <br/><br/>
Hidden force: A report of the international conference of middle level manpower San Juan, Puerto Rico, October 10-12, 1962 

 -  Harper & Row Publishers, New York  1963 
 - 203 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Labor economics
<br/><br/><label>Dewey Class. No.: </label>331  GOD-H