Mckenzie, Malcolm A <br/><br/>
Cephalosporium elm wilt in Massachusetts  / 
Malcolm A. Mckenzie and Eunice M. Johnson 
 - Amherst, Mass  :   Massachusetts State College 
 - 24 p. 
 - Massachusetts Agr. Exp. Sta. Bull.; 368 .
<br/><br/><label>LCCN: </label>203485 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Olmo -- Enfermedades por hongos  Cophalosporium