Haas, Mary Rosamond 1910 - The prehistory of languages / by Mary Rosamond Haas - Hague : Mouton, 1969 - 120 p. ; 22cm - Janua linguarum, Series minor ; nr. 57 . Includes bibliographical references Subjects--Topical Terms: ProtolanguagesLinguistic change Dewey Class. No.: 410