Mother Tongue Education: The West African experience / 
Edit. by Ayo Bamgbose. 
 - Paris :  London:  UNESCO;  Hodder and Stoughton,  1976. 
 - 153 . :  il. 
<br/><br/><label>ISBN: </label>0340201207 (Hodder and Stoughton) 9231012398 
<br/><br/><label>No. de Clasificación Universal Decimal: </label>37: 809.6 =20 MOT.