TY - BOOK AU - Bates,Regis J AU - Bates,Marcus TI - Principles of Voice and Data Communications SN - 9780071257671 : U1 - 384.068 19 PY - 2007/// CY - Boston PB - McGraw-Hill KW - Data Communication KW - Spines KW - Communication KW - Intelligent Networks N1 - cse N2 - Computer Science ER -