TY  - BOOK
AU  - Donovan, John J.
TI  - Systems programming
SN  - 9780074604823
U1  - 005.42 DON 
PY  - 1972///
CY  - New Delhi
PB  - Tata McGraw Hill, 
KW  - Machine language
KW  - Computer programming
KW  - Programming language
N1  - Includes index
ER  -