Singh, B.B. <br/><br/>
General guide for cowpea cultivation and seed production /  
by  B. B. Singh. 
 - Ibadan :    International Institute of Tropical Agriculture,    [n.d .] 
 - 16 p. ;    28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Seed industry and trade.<br/> Grain -- Seeds.
<br/><br/><label>Dewey Class. No.: </label>338.1731 SIN