Sigh, S.R and etal  <br/><br/>
Cowpea Research at IITA 
S. R. Singh 
 - Monograph No 1 
 - Ibadan  International Institute of Tropical Agriculture  1989 
 - ii, 19p.:ill  Pbk 
<br/><br/><label>LC Class. No.: </label>SB 205.C6  / 1989