Gaya APA
Elbert, Bruce R.. (1990).
International telecommunication managemant .
Boston:
Artech House.
Gaya Chicago
Elbert, Bruce R..
International telecommunication managemant.
Boston:
Artech House,
1990.
Text.
Gaya MLA
Elbert, Bruce R..
International telecommunication managemant.
Boston:
Artech House,
1990.
Text.
Gaya Turabian
Elbert, Bruce R..
International telecommunication managemant.
Boston:
Artech House,
1990.
Print.