@book{31739,
	author = {Butterfield, Herbert,},
	title = {International conflict in the twentieth century :},
	publisher = {Routledge & Kegan,},
	year = {c1960.},
	address = {London :},
	note = {Reprint of the ed. published by Harper, New York, which was issued as v. 2 of Religious perspectives.}
}