Cita APA

Stata Corporation. StataQuest: Text companion. Belmont, Calif: Duxbury Press.

Chicago Style Citation

Stata Corporation. StataQuest: Text Companion. Belmont, Calif: Duxbury Press.

Cita MLA

Stata Corporation. StataQuest: Text Companion. Belmont, Calif: Duxbury Press.

Atenció: Aquestes cites poden no estar 100% correctes.