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

 - London  Academic Press  1978 
 - 565p 
<br/><br/>D.M. Spencer: Powdery mildews.  London.  Academic Press, 1978. 0-12-656850-2--(632.45SPE)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>0-12-656850-2 
<br/><br/><label>Dewey Class. No.: </label>632.45  / SPE