@book{2528,
	author = {Ed, 50th.},
	title = {The world of learning 2000 /},
	publisher = {Routledge,},
	year = {1999.},
	series = {Europa world of learning.},
	address = {[S.l.] :},
	edition = {50th ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/1857430646/chopaconline-20}
}