TY  - BOOK
ED  - Discovery Channel (Firm)
ED  - Tapestry International (Firm)
ED  - Discovery Communications, Inc.
ED  - Assignment Discovery (Television program)
TI  - Understanding viruses
SN  - 1587389606
AV  - QR365.U53 2004 
PB  - Discovery Communications
KW  - Viruses - Juvenile films
KW  - QR
N1  - Produced by Tapestry International Productions, Ltd. for the Discovery Channel; Grades 6-12
ER  -