Harper, F <br/><br/>
Principles of arable crop production  
F . Harper 
 - London   Granada publishing ltd   1983 
 - viii, 336p, ill  hbk 
<br/><br/><label>ISBN: </label>024611719 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Field crops 
<br/><br/><label>LC Class. No.: </label>SB 185 H3