Black, U. D. (1997). ISDN & SS7: Architectures for digital signaling networks. Prentice Hall.
芝加哥风格引文Black, Uyless D. ISDN & SS7: Architectures for Digital Signaling Networks. Upper Saddle River, N.J.: Prentice Hall, 1997.
MLA引文Black, Uyless D. ISDN & SS7: Architectures for Digital Signaling Networks. Prentice Hall, 1997.
警告：这些引文格式不一定是100％准确.