Coons, G. H. <br/><br/>
The sugar-beet leaf-spot disease and its control by direct measures  / 
by G. H. Gons 
 - Washington  :   Department of Agriculture 
 - 20 p. 
 - EUA. Dep. of Agr. Circular; 115 .
<br/><br/><label>LCCN: </label>202683 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Remolacha azucarera -- Enfermedades