Dougherty, James E. Contending theories of international relations James E. Dougherty, Robert L. Pfaltzgraff, Jr. - Philadelphia : J. B. Lippincott Company, 1971. - xvi, 416 p. ; 24 cm. Includes bibliographical references and indexes. LCCN: 96014654 Subjects--Topical Terms: International relations. LC Class. No.: JX1395 / .D67 1971 Dewey Class. No.: 327.1/01