@book{8420,
	author = {West, Richard and Turner, Lynn H.},
	title = {Introducing communication theory:},
	publisher = {McGraw-Hill,},
	year = {2014.},
	address = {New York :},
	edition = {5th ed.},
	url = {https://books.google.com.pk/books?id=CyqYygAACAAJ&dq=9780073534282&hl=en&sa=X&redir_esc=y}
}