Stein, Arthur A. Why nations cooperate : circumstance and choice in international relations / Arthur A. Stein. - Ithaca, N.Y. : Cornell University Press, 1990. - xi, 219 p. : ill. ; 24 cm. Includes bibliographical references and index. ISBN: 0801424178 (cloth : alk. paper) 0801497817 (paper : alk. paper) LCCN: 90055132 Subjects--Topical Terms: International relations.International relations--Psychological aspects.International relations--Social aspects. LC Class. No.: JX1391 / .S76 1990 Dewey Class. No.: 327