@book{2609,
	author = {Roskin, Michael. and Berry, Nicholas O.},
	title = {IR, an introduction to international relations /},
	publisher = {Prentice-Hall,},
	year = {c1990.},
	address = {Englewood Cliffs, N.J. :},
	edition = {Instructor's ed.},
	note = {Includes bibliographical references and index.}
}