TY  - BOOK
AU  - Heldman,Robert K.
TI  - Future telecommunications: information applications, services & infrastructure 
SN  - 0070280398 (hardcover)
AV  - HE 7631 .H45 1993
PY  - 1993///
CY  - Washington, D.C.
PB  - McGraw-Hill
KW  - Telecommunication
KW  - Technological innovations
KW  - Information technology
KW  - Information services
N1  - Includes bibliographical references
ER  -