@book{146883,
	author = {Barry, Peter.},
	title = {Beginning theory :},
	publisher = {Manchester University Press,},
	year = {2002.},
	series = {Beginnings},
	address = {New York :},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/bios/hol051/2002026448.html}
}