00295nam a2200109 a 450000500170000002000150001708200160003210000140004824500520006226000460011430000250016020251203110549.0  a8171005012  a300.72bGUP  aGupta, S.  aResearch Methodology and Statistical Techniques  aNew DelhibDeep & Deep Publicationsc2003  axii,510p.c24 cm. HB