TY - GEN AU - Singh B P, Raychaudhuri S P TI - Current trends in plant virology: proceedings of group discussion on plant virology held at national botanical research institute, Lucknow February 8-9-1980 T2 - 4-5 SN - 0- 88065- 220-9 U1 - 576. 6483 SIN;1 CY - Newdelhi, Today & Tomorrow s printers & Publishers KW - Virus identification/ virus ecology/plant virus diseases/ medicinal-ornamental plants ER -