00377nam a2200133Ia 4500008004100000040001600041041001200057082001300069100002400082245006800106250001200174260004600186300001100232230917s9999||||xx |||||||||||||| ||und||  e83278aMAIN  aEnglish  a415 L25L  aLangacker, Ronald W 0aLanguage and its structure: some fundamental linguistic concept  a2nd ed.  aNew YorkbHarcourt Brace Jovanovichc1973  a275 p.