Stakman, Elvin Charles. <br/><br/>
A study in cereal rusts  : physiological races 

 - Minneapolis, Minn :  The,  1913 
 - 56 p.  : ilus. 
<br/><br/>Tesis (Doctor of Philosophy) -- University of Minnesota. Graduate School 
<br/><br/><label>LCCN: </label>57582 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Roya de los cereales.<br/>Roya del trigo.