TY  - BOOK
AU  - Singh,R.P.
AU  - Sapre,S.D.
TI  - Communication systems : : analog and digital 
SN  - 9781259004605 (pbk.)
AV  - TK5101 .S56 2012
PY  - 2012///
CY  - New Delhi
PB  - Tata McGraw-Hill
KW  - Telecommunication systems.
KW  - Digital communications
N1  - Includes bibliographical references and indexes
ER  -