TY  - BOOK
AU  - Wooldridge,Susan
TI  - Data processing : made simple
SN  - 0434984558 (pbk)
U1  - QA/76.5 
PY  - 1981///
CY  - London
PB  - Heinemann.
KW  - Electronic digital computers.
N1  - Includes index
ER  -