TY  - BOOK
AU  - Anderson R. G.
TI  - Data processing: Volume 1 principles and practices
SN  - 0712110194
AV  - QA76.9 .D345. A5 1990
PY  - 1990///
CY  - London
PB  - Pitman publishing
KW  - types of computer systems,development of computer applications,programming and software
ER  -