Broadbent, L  <br/><br/>
Investigation of virus diseases of brassica crops 

 - London:   Cambridge University Press,   1957 
 - vii, 92p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Subjects--Index Terms: </label>Brassica crops Virus 
<br/><br/><label>Universal Decimal Class. No.: </label>635.34/35:632.3  / J7