@book{80127,
	author = {Frenzel, Louis E.,},
	title = {Principles of electronic communication systems /},
	publisher = {McGraw-Hill Education (India)  Private Ltd.,},
	year = {2016 [McGraw-Hill Education (India) Edition 2019]},
	address = {Chennai :},
	edition = {Fourth edition.},
	note = {Includes index.}
}