Black, U. (1997). ISDN and SS7: Architecture for digital signaling networks. Upper Saddle River, NJ: Prentice-Hall.
استشهاد بنمط شيكاغوBlack, Uyless. ISDN and SS7: Architecture for Digital Signaling Networks. Upper Saddle River, NJ: Prentice-Hall, 1997.
MLA استشهادBlack, Uyless. ISDN and SS7: Architecture for Digital Signaling Networks. Upper Saddle River, NJ: Prentice-Hall, 1997.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.