Cita APA (7th ed.)

MathSoft. (1999). S-plus 2000: Programmer's guide. Data Analysis Products Division.

Cita Chicago (17th ed.)

MathSoft. S-plus 2000: Programmer's Guide. Seattle: Data Analysis Products Division, 1999.

Cita MLA (9th ed.)

MathSoft. S-plus 2000: Programmer's Guide. Data Analysis Products Division, 1999.