TY  - BOOK
AU  - Gentle,Edgar
ED  - American Telephone and Telegraph Company.
TI  - Data communications in business: an introduction,
AV  - HF5548.2 .A72
U1  - 651.7 
PY  - 1965///]
CY  - New York
KW  - Electronic data processing
KW  - Business
N1  - Bibliography: p. 156-159
ER  -