TY  - BOOK
AU  - Wallis,P.N.
TI  - Machine accounting and accounts office practice
U1  - 651.264 
PY  - 1948///
CY  - London
PB  - Sir ISAAC Pitman
KW  - Office practice
KW  - Automation
KW  - Electronic data processing
KW  - Electronic office machines
N1  - Includes index
ER  -