@book{222309,
	author = {Guth, David W. and Marsh, Charles},
	title = {Public relations},
	publisher = {Pearson/Allyn and Bacon},
	year = {c2009.},
	address = {Boston},
	edition = {4th ed.},
	url = {http://www.loc.gov/catdir/toc/ecip081/2007039695.html}
}