@book{77882,
	author = {Katz, Elihu, and Lazarsfeld, Paul F.,},
	title = {Personal influence :},
	publisher = {The Free Press Of Glencoe,},
	year = {1964.},
	address = {New York :},
	edition = {First Free Press Paperback Edition.},
	note = {Include index.},
	url = {https://fll.law.cu.edu.eg/fulltext/bks/B08-06245.pdf}
}