Bellamy, J. (1991). Digital telephony (2nd ed.). John Wiley.
Chicagoスタイル(17版)引用形式Bellamy, John. Digital Telephony. 2nd ed. New York: John Wiley, 1991.
MLA(9版)引用形式Bellamy, John. Digital Telephony. 2nd ed. John Wiley, 1991.
警告: この引用は必ずしも正確ではありません.
Bellamy, J. (1991). Digital telephony (2nd ed.). John Wiley.
Chicagoスタイル(17版)引用形式Bellamy, John. Digital Telephony. 2nd ed. New York: John Wiley, 1991.
MLA(9版)引用形式Bellamy, John. Digital Telephony. 2nd ed. John Wiley, 1991.