TY  - BOOK
AU  - Hellerman, H
TI  - Digital computer system principles
SN  - 0-07-028073-8
PY  - 1974///
CY  - New Delhi
PB  - Tata McGraw-Hill
KW  - Computer Programming
KW  - Computer Science
KW  - Data Processing
KW  - Digital Computers
KW  - NASA Thesaurus
ER  -