Stata Corporation. (1985). Stata cross-sectional time series: Reference manual release 8. Stata Corporation.
Chicago-referens (17:e uppl.)Stata Corporation. Stata Cross-sectional Time Series: Reference Manual Release 8. College Station, Tex: Stata Corporation, 1985.
MLA-referens (9:e uppl.)Stata Corporation. Stata Cross-sectional Time Series: Reference Manual Release 8. Stata Corporation, 1985.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.