Stata Corporation. (1999). Stata reference manual: Release 6. Stata Corporation.
Chicago Style (17th ed.) CitationStata Corporation. Stata Reference Manual: Release 6. College Station, Tex: Stata Corporation, 1999.
MLA (9th ed.) CitationStata Corporation. Stata Reference Manual: Release 6. Stata Corporation, 1999.
Warning: These citations may not always be 100% accurate.