Abstracts of papers 

 - St. Paul, Minn. :  The American Phytopathological Society,  [1973] 
 - [s. p.] 
<br/><br/><label>LCCN: </label>26821 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fitopatología--Congresos.
<br/><br/><label>Dewey Class. No.: </label>632  / C63 1973