Weinreich, Uriel. Languages in contact : Findings and problems / Uriel Weinreich; With a preface by Andre Martinet. - The Hague Paris : Mouton & Co., 1968. - xii, 152 p. ; 25 cm. 6th printing. Bibliogr.: p. 123-146. ISBN: 9027926891 Subjects--Topical Terms: Languages in contact