Vansina, Jan Oral tradition : a study in historical methodology / Jan Vansina - Harmondsworth : Penguin , 1973 - xiv, 226p. : ill. ; 20 cm. - This translation first published by Routledge & Kegan Paul 1965 . Includes bibliographical references and index. Subjects--Topical Terms: AnthropologyMethodologyHistoryOral tradition Dewey Class. No.: 572 / VAN