APA Style

Held, Gilbert. (1997). Understanding Data Communication : From Fundamentals to networking. 2nd Edition (2nd Edition). Chichester: John Wiley & Sons.

Chicago Style

Held, Gilbert. Understanding Data Communication : From Fundamentals to networking. 2nd Edition. 2nd Edition Chichester: John Wiley & Sons, 1997. Text.

MLA Style

Held, Gilbert. Understanding Data Communication : From Fundamentals to networking. 2nd Edition. 2nd Edition Chichester: John Wiley & Sons, 1997. Text.

Turabian Style

Held, Gilbert. Understanding Data Communication : From Fundamentals to networking. 2nd Edition. 2nd Edition Chichester: John Wiley & Sons, 1997. Print.