00303nam a2200121Ia 450000500170000000800410001704100080005808200160006610000250008224500250010726000400013230000090017220260720174534.0260720s1995    xx            000 0 und d  aeng  a311.22 REDR  aReddy, R Jayaprakash  aResearch methodology  aNew DelhibAllied Publicationc1995  a362p