TY  - BOOK
AU  - Martin, E W
AU  - Perkins W C
TI  - Computers and information systems : An Introduction
SN  - 0256014523
U1  - 001.64 MAR/COM 
PY  - 1973///
CY  - London
PB  - Richard D Irwine
N1  - Includes Index
ER  -