Lockhart, J. A. R. <br/><br/>
Introduction to crop husbandry :  (Including grassland) / 
by J.  A. R. Lockhart and A. J. L. Wiseman. 
 - 6th ed. 
 - Oxford :  Pergamon Press,  c1989. 
 - xiii, 319 p. :  ill. ;  26 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0029460379 (Hard cover) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crops.<br/>Agriculture.<br/>Crops--Great Britain.<br/>Agriculture--Great Britain.
<br/><br/><label>LC Class. No.: </label>SB98  / .L64 1989