TY  - BOOK
AU  - Rabe-Hesketh Sophia
AU  -  Skrondal Anders
TI  - Multilevel and longitudinal modeling using stata.(2 Vol Set)
U1  - Sigma:f, Q2.1-2 
PY  - 2012///
CY  - Texas
PB  - Stata Press Publication     
KW  - Business Economics
ER  -