Norman, D. W. <br/><br/>
Farming systems in the Nigerian savanna :  research and strategies for development / 
David W. Norman, Emmy B. Simmons. 
 - Boulder :  Westview Press,  1982. 
 - xxiv, 275 p. :  ill. ;  23 cm. 
 - A West view replica edition .
<br/><br/>Includes bibliography and indexes. 
<br/><br/> Open access. 
<br/><br/><label>ISBN: </label>0865319251 
<br/><br/><label>LCCN: </label>8211077  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural systems--Nigeria.<br/>Agriculture--Research--Nigeria.<br/>Agriculture and state--Nigeria.<br/>Savannas--Nigeria.