TY - BOOK AU - Siddiqui,Tanveer AU - Tiwary,U S . TI - Natural language processing and information retrieval / SN - 9780195692327: U1 - 006.35 21 PY - 2008/// CY - New Delhi : PB - Oxford University Press , KW - NATURAL LANGUAGE PROCESSING KW - INFORMATION RETRIEVAL N1 - Includes index and appendix ER -