APA Style
Helmers, Scott A.. (1989).
Data cummunications, a begineers guide to concepts and technology .
New Jersey:
Prentice Hall.
Chicago Style
Helmers, Scott A..
Data cummunications, a begineers guide to concepts and technology.
New Jersey:
Prentice Hall,
1989.
Printed Book.
MLA Style
Helmers, Scott A..
Data cummunications, a begineers guide to concepts and technology.
New Jersey:
Prentice Hall,
1989.
Printed Book.
Turabian Style
Helmers, Scott A..
Data cummunications, a begineers guide to concepts and technology.
New Jersey:
Prentice Hall,
1989.
Printed Book.