TY - BOOK AU - Couch,Leon W TI - Digital and Analog Communication Systems SN - 8178083280 : U1 - 621.38159 19 PY - 2001/// CY - Delhi PB - Pearson Education KW - Communications KW - Spines KW - Digital Communications KW - Digital KW - Analog N1 - cse N2 - Engineering ER -