Digital telephony
Hilton, Ronald W.
Digital telephony John C. Bellamy. - 7th ed. - Boston McGraw-Hill/Irwin c2008 - xxxv, 824p.: col. ill.; 29cm
Includes bibliographical references (p. 796-798) and indexes
0073022853
Managerial accounting
Digital telephony John C. Bellamy. - 7th ed. - Boston McGraw-Hill/Irwin c2008 - xxxv, 824p.: col. ill.; 29cm
Includes bibliographical references (p. 796-798) and indexes
0073022853
Managerial accounting