TY - BOOK AU - Jack C. Richards TI - Error analysis: perspectives on second language acquisition SN - 9780582550445 (pbk) U1 - 418 PY - 1984/// CY - London PB - Longman KW - Error analysis KW - Linguistics KW - Language acquisition KW - Psycholinguistics KW - Language learning KW - Social factors KW - RILL ER -