%0 Book Section %B Directions for historical linguistics: A symposium %D 1968 %T Empirical Foundation for a Theory of Language Change %A Weinreich, Uriel %A Labov, William %A Herzog, Marvin I. %E Lehmann, W. P. %E Malkeil, Yakov %K Historical linguistics %K language change %K езикова промяна %K историческа лингвистика %B Directions for historical linguistics: A symposium %I Univ. of Texas Press %C Austin, {TX} %P 95–188 %G eng