TY  - BOOK
AU  - Frenzel, Louis E 
TI  - Principles of electronic communication systems 
SN  - 9780073107042 
U1  - 621.382 FRE 2008 
PY  - 2008///
CY  - Boston
PB  - McGraw-Hill Higher Education
KW  - Digital communications
KW  - Electronic systems
ER  -