Stata Corporation. (1985). Stata user's guide: Release 8. Stata Corporation.
Lua i Stíl Chicago (17ú heag.)Stata Corporation. Stata User's Guide: Release 8. College Station, Tex: Stata Corporation, 1985.
Lua MLA (9ú heag.)Stata Corporation. Stata User's Guide: Release 8. Stata Corporation, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.