TY - BOOK AU - AU - Romberger,John Albert AU - Anderson,James D. AU - Powell,Rex L. ED - Beltsville Symposium in Agricultural Research ED - BARC Science Seminar Committee. TI - Virology in agriculture: Invited papers SN - 0856261378 PY - 1977/// CY - Tunbridge Wells PB - Abacus Press KW - Virology in agriculture KW - Plant virology N1 - Beltsville Symposium in Agriculture Research' - Preface to this volume ER -