Elson, Benjamin F. 1921-, Studies in Ecuadorian Indian languages I.Introd. by Cathrine [id est Catherine] Peeke. - Norman, Oklahoma : Summer Institute of Linguistics of the University of Oklahoma, (c)1962. - xii, 292 pages map, tables. 21 cm. LCCN: a 62009855 Subjects--Topical Terms: Indians of South America--Languages.--Ecuador LC Class. No.: PM5211 / .S783 1962