TY  - BOOK
AU  - D G A Walkey
TI  - Applied Plant Virology
SN  - 0434922250
U1  - 632.8 WAL/AP 
PY  - 1985///
CY  - London
PB  - Heinemann
KW  - plant virology
KW  - plant virus classification
KW  - virus symptoms
ER  -