TY  - BOOK
AU  - Graham,John
AU  - Loader,Roger
TI  - A Programmer's introduction to computer systems : Hardware and software
SN  - 0070841926
U1  - QA/76.5 
PY  - 1989///
CY  - London
PB  - McGraw-Hill Book Company.
KW  - Computer software.
KW  - Electronic digital computers.
ER  -