TY  - BOOK
ED  - Stata Corporation
TI  - Stata survey data: reference manual release 9 
SN  - 1597180033
AV  - HA32 .S7 2005
PY  - 2005///
CY  - College Station, Tex.
PB  - StataCorp LP
KW  - Stata
KW  - Statistics
KW  - Data processing
KW  - Graphic methods
KW  - Social sciences
KW  - Statistical methods
KW  - Computer programs
N1  - "A Stata Press Publication."; Includes index
ER  -