TY  - BOOK
AU  - Biswas, S.B. & Biswas, Amita
TI  - An Introduction to viruses
SN  - 0 7069 0411 7
U1  - 576.6 Bis/Bis 
PY  - 1976///
CY  - Vikas Publishing House Pvt Ltd., New Delhi
ER  -