Starr, T. J., Cioffi, J. M., & Silverman, P. (1999). Understanding digital subscriber line technology. Prentice-Hall PTR.
Lua i Stíl Chicago (17ú heag.)Starr, Thomas J.J, John M. Cioffi, agus Peter Silverman. Understanding Digital Subscriber Line Technology. Upper Saddle River, N.J: Prentice-Hall PTR, 1999.
Lua MLA (9ú heag.)Starr, Thomas J.J, et al. Understanding Digital Subscriber Line Technology. Prentice-Hall PTR, 1999.
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