Jessel, Levic The ethnic process : an evolutionary concept of languages and peoples / Levic Jessel - The Hague, The Netherlands : Mouton, c1978 - 275 p. ; 24 cm. - Contributions to the sociology of language ; 20 . Includes bibliographical references and index ISBN: 9027976031 : PND 42.00 Subjects--Topical Terms: Anthropological linguisticsSociolinguistics Dewey Class. No.: 301.21