TY  - BOOK
AU  - Merchant, Ronald
TI  - Adding Machines And Calculators
SN  - 047159444 X
U1  - 651.82 
PY  - 1974///
CY  - New York
PB  - John Wiley and Sons, Inc.
KW  - Management and Auxiliary services
KW  - Technology (Applied sciences)
KW  - Calculators
KW  - Data processing
ER  -