Hamilton, L. C. Statistics with Stata: Updated for version 8 (Student edition.).
Cita Chicago (17th ed.)Hamilton, Lawrence C. Statistics with Stata: Updated for Version 8. Student edition.
Cita MLA (9th ed.)Hamilton, Lawrence C. Statistics with Stata: Updated for Version 8. Student edition.
Atenció: Aquestes cites poden no estar 100% correctes.