Dvorak Karen <br/><br/>
Exploratory surveys in research planning 
/ Karen Dvorak, Anne-Marie Izac 
. - Ibadan  : IITA, 1992
. - 21 p.  : couv. il.  ; 21 cm. 
 - IITA research guide  28 .
<br/><br/>Bibliogr. 
<br/><br/><label>Universal Decimal Class. No.: </label>fre