John Freer. (1999). Computer communications and networks. Pitman.
शिकागो स्टाइल उद्धरणJohn Freer. Computer Communications and Networks. Pitman, 1999.
एमएलए उद्धरणJohn Freer. Computer Communications and Networks. Pitman, 1999.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.