TY  - BOOK
AU  - Acock Alan C
AU  -  Poi Brian
AU  - Acock Alan C
TI  - Gentle introduction to stata
SN  - 9781597180757 (pbk)
U1  - B28, Q0 TB 
PY  - 2010///
CY  - Texas
PB  - Stata Press Publication     
N1  - References 379-382p.; Index 383-393p
ER  -