01259nam0-2200313 --450 991088739980332120240923105013.020240923d1974----kmuy0itay5050 baengNLa 001yyThird International symposium on virus diseases of ornamental plantsCollege Park, USA 11-15 September 1972[The Hague][ISHS][1974?]348 p.ill.24 cmActa horticulturae36International society for horticultural scienceIn calce al front.: Commission for plant protection , Working group virus diseases of ornamental plants.Third international symposium on virus diseases of ornamental plantsPiante ornamentaliMalattie635.92823itaInternational symposium on virus diseases of ornamental plants<3.; 1972; College Park>1769334International Society for Horticultural ScienceITUNINAREICATUNIMARCBK9910887399803321A AGR 82411937/2024FAGBCFAGBCThird International symposium on virus diseases of ornamental plants4239158UNINA