TY  - BOOK
AU  - Proakis,John g., Salehi, Masoud
AU  - x
TI  - Comunication systems engineering: x
SN  - 8178086107
U1  - 620.7/P962c 
PY  - 2002///
CY  - Delhi
PB  - Pearson Education
KW  - Systems engineering
N1  - x
ER  -