@book{531,
	author = {Yukl, Gary A.},
	title = {Leadership in organizations /},
	publisher = {Pearson/Prentice Hall,},
	year = {c2006.},
	address = {Upper Saddle River, NJ :},
	edition = {6th ed.},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/toc/ecip057/2005003244.html}
}