Walker, John Charles  1893 <br/><br/>
Plant Pathology 

 - 3a. ed. 
 - New York :   McGraw-Hill Book Co.,   1969. 
 - xi, 819 p. :   il. ;   23 cm. 
 - McGraw-Hill Publicfations in Agricultural Sciences .
<br/><br/> Bibliografía al final de capítulos 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PLANTAS-ENFERMEDADES