Cita APA (7a ed.)

Stata Corporation. (2001). Stata 7 reference manual release 7: 1, A-G. Stata Press.

Cita Chicago Style (17a ed.)

Stata Corporation. Stata 7 Reference Manual Release 7: 1, A-G. College Station, Tex.: Stata Press, 2001.

Cita MLA (9a ed.)

Stata Corporation. Stata 7 Reference Manual Release 7: 1, A-G. Stata Press, 2001.