00310nam a2200121 a 450000500170000002000180001708200160003510000230005124500360007426000380011030000210014850000190016920251203111958.0  a9788131513811  a150.72bJAC  aJackson, L. Sherri  aResearch methods and statistics  aNew DelhibCengage Learningc2009  a324p.c24cm.bPB  aincludes index