Lennon, E. B. (1993). Conference Report: NORTH AMERICAN INTEGRATED SERVICES DIGITAL NETWORK (ISDN) USERS’ FORUM (NIUF) Gaithersburg, MD June 22–25, 1993. J Res Natl Inst Stand Technol.
Citação norma ChicagoLennon, Elizabeth B. "Conference Report: NORTH AMERICAN INTEGRATED SERVICES DIGITAL NETWORK (ISDN) USERS’ FORUM (NIUF) Gaithersburg, MD June 22–25, 1993." J Res Natl Inst Stand Technol 1993.
Deismireacht MLALennon, Elizabeth B. "Conference Report: NORTH AMERICAN INTEGRATED SERVICES DIGITAL NETWORK (ISDN) USERS’ FORUM (NIUF) Gaithersburg, MD June 22–25, 1993." J Res Natl Inst Stand Technol 1993.
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