Walkey, D. G. A. creator text New York Wiley c1985 monographic xiv, 329 p. : ill. ; 24 cm. D.G.A. Walkey. "A Wiley-Interscience publication." Includes bibliographies and index. Virus diseases of plants Plant viruses SB736 .W34 1985 632/.8 0434922250 85005358 UOEL 000 20150525123219.0 496940