@book{19069,
	author = {CARLSON A. B.},
	title = {COMMUNICATION SYSTEMS: AN INTRODUCTION TO SIGNALS AND NOISE IN ELECTRICAL COMMUNICATION},
	publisher = {TATA MAGRAWHILL EDU LTD.},
	year = {2011,R.P.2013},
	edition = {5TH},
	note = {SE/SI/1038}
}