TY  - BOOK
AU  - ECA
AU  - ECA
TI  - Up to date ttl integrated circuits (7400?7450729) data & comparison tables
SN  - 8170298253
AV  - 621.3815 ECA 1997 
U1  - 621.3815 ECA 1997 
PY  - 1997///
CY  - New Delhi
PB  - BPB
KW  - Electronic Engineering
ER  -