Havelock, R. G.  & Huberman, A. M. <br/><br/>
Solving educational problems : the theory and reality of innovation in developing countries 

 - Praeger, Unesco  1978 
 - 309 
<br/><br/><label>ISBN: </label>0-03-044206-0 
<br/><br/><label>Dewey Class. No.: </label>370.194 Hav/Hub