TY  - BOOK
AU  - Heck,Ronald H.
AU  - Thomas,Scott Loring
TI  - An introduction to multilevel modeling techniques
SN  - 0805829636 :
U1  - 300.15118 
PY  - 2000///
CY  - Mahwah, N.J.
PB  - Lawrence Erlbaum Associates
KW  - Social sciences
KW  - Mathematical models
KW  - Research
N1  - Includes bibliographical references and index
ER  -