APA Style
HELGERT, Hermann J. (1991).
Integrated Services Digital Networks : Architectures, Protocols, Standards .
:
Addison-Wesley.
Chicago Style
HELGERT, Hermann J.
Integrated Services Digital Networks : Architectures, Protocols, Standards.
:
Addison-Wesley,
1991.
.
MLA Style
HELGERT, Hermann J.
Integrated Services Digital Networks : Architectures, Protocols, Standards.
:
Addison-Wesley,
1991.
.
Turabian Style
HELGERT, Hermann J.
Integrated Services Digital Networks : Architectures, Protocols, Standards.
:
Addison-Wesley,
1991.
.