na INLIS000000000004271 20210922120826 0010-0921000066 210922 0 eng A Conspectus of aphids as vectors of plants viruses / J.S. Kennedy; M.F. Day; V.F. Eastop Kennedy, J.S. London : Commonwealth Institute of Entomology, 1962 114 p.: ill. ; 25 cm. 632.752.2 KEN c 632.752.2 APHIDOIDEA VIROSES VECTORS Incl. Bibl. 556/KA/2021