Dougherty, James E., Contending theories of international relations [by] James E. Dougherty [and] Robert L. Pfaltzgraff, Jr. - Philadelphia Lippincott [1971] - xvi, 416 p. 24 cm. 920327 Includes bibliographical references. LCCN: 70134865 Subjects--Topical Terms: International relations LC Class. No.: JX1395 / .D67 Dewey Class. No.: 327/.01