TY  - BOOK
AU  - Heck,Ronald H.
AU  - Thomas,Scott Loring
TI  - An introduction to multilevel modeling techniques
SN  - 9781841697550 (hbk.) :
PY  - 2009///
CY  - New York
PB  - Routledge
KW  - Social sciences
KW  - Mathematical models
KW  - Research
N1  - Includes bibliographical references (p. 252-259) and indexes
ER  -