Syllabus for potato diseases (Diapositiva) 

 - (s.l.) :  American Phytophatological Society,  1980 
 - 37 diapositivas col. 2 x 2 plg. 
 - Diseases of plants  ; 34 .
 - Diseases of plants  ; 34 .
<br/><br/> Nota explicativa 
<br/><br/><label>LCCN: </label>19427 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Papas--Enfermedades