APA (7th ed.) Citation

NetLibrary, Inc, McKnight, L. W., Lehr, W., & Clark, D. D. (2001). Internet telephony. MIT Press.

Chicago Style (17th ed.) Citation

NetLibrary, Inc, Lee W. McKnight, William Lehr, and David D. Clark. Internet Telephony. Cambridge, Mass. ; London: MIT Press, 2001.

MLA (9th ed.) Citation

NetLibrary, Inc, et al. Internet Telephony. MIT Press, 2001.