TY  - BOOK
AU  - Egan,Bruce L.
TI  - Information superhighways: the economics of advanced public communication networks 
SN  - 0890064741
AV  - TK5102 .Eg1 1991
PY  - 1991///
CY  - Boston 
PB  - Artech House
N1  - Includes bibliographical references and index
ER  -