Saltzberg, B. R., & Verma, P. K. (1990). ISDN systems: Architecture, technology, and applications. Prentice-Hall International.
Citazione stile Chigago Style (17a edizione)Saltzberg, Burton R., e Pramode K. Verma. ISDN Systems: Architecture, Technology, and Applications. Englewood Cliffs, N.J: Prentice-Hall International, 1990.
Citatione MLA (9a ed.)Saltzberg, Burton R., e Pramode K. Verma. ISDN Systems: Architecture, Technology, and Applications. Prentice-Hall International, 1990.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.