TY - BOOK AU - Bickel,Robert AU - Kenny,David A. TI - Multilevel analysis for applied research : SN - 978 81 224 2204 7 U1 - 519.536/B583m PY - 0000///Goilford press PY - 2008/// CY - New York KW - Statistical mathematics. KW - Statistical mathematics N1 - Includes index and bibliography ER -