00438nam a2200169Ia 4500003000400000005001700004008004100021040000700062041000800069082002300077100002500100245007000125250000600195260004000201300001400241365001300255OSt20230406125214.0210423s2008 xx 000 0 und d cAL aeng a302.072 223bNEUW aNEUMAN (W Lawrence). aSocial research methods: qualitative and quantitative approaches. a6 aNew DelhibDorling Kindersleyc2008 aviii,592. b399cINR