Languages in contact : findings and problems / by Uriel Weinreich ; with a pref. by André MartinetLanguages in contact : findings and problems / by Uriel Weinreich ; with a pref. by André MartinetLinguistics today : publication on the occasion of the Columbia University bicentennial / ed. by André Martinet and Uriel WeinreichLanguages in contact : findings and problems / Uriel Weinreich; with a pref. by André MartinetLanguages in contact : findings and problems / by Uriel Weinreich ; with a pref. by André Martinet