TY  - BOOK
ED  - StataCorp LP.
TI  - Stata data-management reference manual: release 12
SN  - 1597180505
U1  - 310.6273 
PY  - 2011///
CY  - College Station, Tex.
PB  - StataCorp LP
KW  - Stata
KW  - Statistics
KW  -  Data processing
KW  -  Graphic methods
KW  - Social sciences
KW  -  Statistical methods
N1  - "A Stata Press Publication."; Includes index
ER  -