D.M. Spencer <br/><br/>
Downy mildews 

 - London  Academic Press  1981 
 - 636p 
<br/><br/>D.M. Spencer: Downy mildews.  London.  Academic Press, 1981. 0-12-656860-X--(632.452SPE)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>0-12-656860-X 
<br/><br/><label>Dewey Class. No.: </label>632.452  / SPE