@book{347487,
	author = {Drucker, Peter F.},
	title = {The essential drucker :},
	publisher = {harper business,},
	year = {2001.},
	address = {[S.l.] :},
	edition = {2nd ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0750650184/chopaconline-20}
}