Agricultural intensification and efficiency in the West African sava nnahs :  evidence from northern Nigeria / 
I. Okike ... [et al. ] 
 - Nairobi :  ILRI ,  2001 
 - vi, 47 p. :  ill. ;  25 cm. 
 - Socio-economics and policy research working paper;  33 .
<br/><br/>Includes bibliographical references (p. 44-7) 
<br/><br/><label>ISBN: </label>9291460966 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural intensification.<br/>Sustainable agriculture.
<br/><br/><label>Dewey Class. No.: </label>333.95 AGR