Tripp.B / Wolley., J <br/><br/>
The Planning of farm research; Identifying FACTORS FOR EXPERIMENTATION . 

 - colombia  cimmyt  1989 
 - vi,85pg,illus  pbk 
<br/><br/><label>ISBN: </label>968612702 
<br/><br/><label>LC Class. No.: </label>S 540.A2.I7