Cita APA (7a ed.)

Stata Corporation. (2009). Stata quick reference and index release 11. Stata Press.

Cita Chicago Style (17a ed.)

Stata Corporation. Stata Quick Reference and Index Release 11. College Station, Tex.: Stata Press, 2009.

Cita MLA (9a ed.)

Stata Corporation. Stata Quick Reference and Index Release 11. Stata Press, 2009.