Okocha, P. I. <br/><br/>
Field varietal screening against African rice gall image 
P. I. Okocha, M. K. Ukwungwu and Joshi, R. C. 
 - Ibadan  I I T A   1992 
 - 17p.  Hbk. 
<br/><br/><label>LC Class. No.: </label>SB189.O4 1992