Godwin, Francis W, ed. Goodwin, Richard N, ed. Haddad, William F, ed. <br/><br/>
Hidden force 
 International conference on middle level manpower (1962 : Oct 10-12 : San Juan, Puerto Rico) 

 - New York  Harper and Row, publishers  1963 
 - xvi, 203p.; 22cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>International cooperation<br/>Labour - manpower<br/>Labour economics<br/>Manpower<br/>Manpower planning<br/>Skill development