Ball E M <br/><br/>
Serological tests for the identification of plant viruses 
Ball E M 
 - Minnesota  The american phytological society        1974 
 - 31p.  cm. 
<br/><br/><label>Standard No.: </label>51791 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Virology<br/>Biology
<br/><br/><label>Dewey Class. No.: </label>G9194:f(L:4:662), L4