00325nam a2200121Ia 4500008004100000040001600041041001200057082001400069100002000083245003700103260004700140300001600187230917s9999||||xx |||||||||||||| ||und||  e71466aMAIN  aEnglish  a409 B768V  aBright, William 0aVariation and change in language  aCaliforniabStaford University Pressc1976  axiv, 283 p.