Balls, W. Lawrence. <br/><br/>
The yields of crop / 
W. Lawrence Balls. 
 - London :  E. and F. N. Spon,  1953. 
 - xv, 144 p. :  ill. ;  25 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cotton.
<br/><br/><label>LC Class. No.: </label>SB249  / .B34 1953