Knapp, Wilfrid. Unity and nationalism in Europe since 1945 / Wilfrid Knapp. - [1st ed.] - Oxford ; New York : Pergamon Press, c1969. - viii, 146 p. ; 20 cm. - The Commonwealth and international library. History division . Includes bibliographical references. ISBN: Subjects--Topical Terms: European federation.Nationalism--Europe. Dewey Class. No.: 320.94 / KNU 1969