@book{20051,
	author = {Kouzes, James M., and Posner, Barry Z.},
	title = {Encouraging the heart :},
	publisher = {Jossey-Bass,},
	year = {c1999.},
	address = {San Francisco :},
	edition = {1st ed.},
	url = {http://www.loc.gov/catdir/bios/wiley046/98043138.html}
}