TY  - BOOK
AU  - Arnold, Robert R.
AU  - Hill, Harold C.
TI  - Modern data processing
U1  - 004 21st ed.
PY  - 1969///
CY  - New York
PB  - John Welley and Sons
KW  - Business - Data processing
KW  - Electronic data processing
KW  - Nichols
KW  - Aylmer V
N1  - Index: p. 369-74
ER  -