@book{20524,
	author = {Knutsen, Torbjørn L},
	title = {A History of international relations theory /},
	publisher = {Manchester University Press ;},
	year = {1997.},
	address = {Manchester ;},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0601/96033348-d.html}
}