Hanson, E. W. <br/><br/>
The black point disease of wheat in the United States  / 
E. W. Hanson and J. J. Christensen 
 - St. Paul, Minnesota  :   University of Minnesota 
 - 30 p. 
 - Minnesota Agr. Exp. Sta. Tech. Bull.; 206 .
<br/><br/><label>LCCN: </label>202244 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Helminthosporium sativum  Hongos fitopatógenos