Advanced teacher training college Owerri, E. Nigeria. 

 - Paris :  UNESCO,  1969. 
 - 35 p. 
 - Their : report series ;  12. .
<br/><br/> Report prepared for the government of Nigeria by UNESCO forthe period 1963-1968. 
<br/><br/><label>No. de Clasificación Universal Decimal: </label>377 (699)=20 "1969" DAV No.12.