@book{3769,
	author = {Black, Sam,},
	title = {The practice of public relations /},
	publisher = {Butterworth-Heinemann,},
	year = {1995.},
	series = {The marketing series. Professional development},
	address = {Oxford ;},
	edition = {4th ed.},
	url = {http://www.loc.gov/catdir/description/els032/95177439.html}
}