TY  - BOOK
AU  - ECC Group
AU  - ECC Group
TI  - Computer tutor :  An Introduction to computers    
AV  - 004 ECC 1990 
U1  - 004 ECC 1990 
PY  - 1990///
CY  - New Delhi
PB  - BPB PUBLICATIONS
KW  - Computer Engineering
ER  -