Symposia:   Twelfth annual conference of the APTI 
/ Association of Principles of Technical Institution (India) 
 - New Delhi:   Association of Principles of Technical Institution (India),   1953 
 - 29p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Subjects--Index Terms: </label>Symposia 
<br/><br/><label>Universal Decimal Class. No.: </label>378.962(063)  / Ass