Singh, U. K. <br/><br/>
Non-formal and continuing education/ 
U. K. Singh 
 - New Delhi:  Discovery Publishing Home,  2001. 
 - 249 p. 
<br/><br/><label>ISBN: </label>8171413714 
<br/><br/><label>Dewey Class. No.: </label>370  / SIN/N