Hagedom, D. J. Virus diseases of pea; Pisum sativum - St. Paul, Minn. : American Phytopathological Society, 1974 - 47 p. : láms. ; ilus. - Monograph ; 9 . - Monograph ; 9 . LCCN: 24181 Subjects--Topical Terms: Chícharo--Enfermedades por virus.