TY  - BOOK
ED  - Stata Corporation.
TI  - Stata base reference manual: release 7 volume 1 A-G
SN  - 1881228487
AV  - HA 32   .S7 2001
PY  - 2001///
CY  - Texas
PB  - Stata Press
KW  - Statistics, graphics and data management
ER  -