Adoption and impact of dry-season dual-purpose cowpea in the semiari d zone of Nigeria /  
H. Inaizumi...[et al] 
 - Ibadan, Nigeria :    International Institute of Agriculture,    1999 . 
 - 14 p. :    figs. ;    25 cm. 
<br/><br/>Includes bibliographical reerences. 
<br/><br/><label>ISBN: </label>9781311711 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Cowpea -- Nigeria.