TY - GEN AU - Wardhaugh Ronald TI - Investigating Language: central problems in linguistics SN - 0631187537 (acid-free paper) AV - P106 PY - 1993/// CY - Oxford [England], Cambridge, Mass. PB - Blackwell KW - Language and languages KW - Linguistics N1 - Includes bibliographical references (p. [275]-287) and ER -