Chesswas, J. D. <br/><br/>
Methodologies of educational planning for developing countries / 
J. D. Chesswas. 
 - París :  UNESCO :  International Institute for Educational Planning,  1969. 
 - 2 v. :  fot. 
<br/><br/> Contents: 2. Tables. 
<br/><br/><label>No. de Clasificación Universal Decimal: </label>37.014.5 (-77) =20 CHE Vol.2.