TY  - ADVS
AU  - Butler,Jeanine L.
AU  - Pellenin,Cheryl
AU  - Ward,Jonathan
ED  - The Discovery Channel,
TI  - Understanding: viruses
PY  - 1997///
CY  - Singapore
PB  - International Publishers Direct
KW  - Virusses
N1  - Executive producer, Nancy LeBrun; Narrator: Candice Bergen
ER  -