TY  - BOOK
AU  - ECA / BPB
TI  - Upto date TTL 7400 data & comparison tables 7400-7450729 Integrated Circuits
SN  - 8170298253
U1  - 105.23 
PY  - 2002///
CY  - New Delhi
PB  - BPB Pub
KW  - BE Computer
ER  -