@book{40227,
	author = {Cohen, William A., and Drucker, Peter F.},
	title = {A class with Drucker :},
	publisher = {AMACOM/ American Management Association,},
	year = {2008},
	address = {New York  :},
	url = {http://www.loc.gov/catdir/toc/ecip0718/2007020976.html}
}