TY  - BOOK
AU  - BISWAS, S.B.
AU  - BISWAS, Amita
TI  - INTRODUCTION TO VIRUSES
SN  - 0 7069 7504 9
U1  - 579.2 
PY  - 1993///
CY  - DelhI
PB  - S. Chand and Sons, Delhi 
ER  -