Cita APA (7a ed.)

SAS Institute & Institute, S. (2014). SAS certification prep guide: Advanced programming for SAS 9 (Fourth edition.). SAS Institute.

Cita Chicago Style (17a ed.)

SAS Institute y SAS Institute. SAS Certification Prep Guide: Advanced Programming for SAS 9. Fourth edition. Cary, N.C.: SAS Institute, 2014.

Cita MLA (9a ed.)

SAS Institute y SAS Institute. SAS Certification Prep Guide: Advanced Programming for SAS 9. Fourth edition. SAS Institute, 2014.