Bassi, Agostino. Del mal del segno - /s.l./ : American Phytopathological Society, (1958) - 49 p. : láms. - Phytopathological classics ; 10 . - Phytopathological classics ; 10 . LCCN: 12293 Subjects--Topical Terms: Gusanos de seda--Enfermedades. Dewey Class. No.: 638.2 / B3