APA (7th ed.) Citation

SAS Institute Content Provider, Institute, S., & SAS Institute Contributor. (2013). Step-By-Step Programming with Base SAS 9. 4. SAS Institute.

Chicago Style (17th ed.) Citation

SAS Institute Content Provider, SAS Institute, and SAS Institute Contributor. Step-By-Step Programming with Base SAS 9. 4. [Place of publication not identified]: SAS Institute, 2013.

MLA (9th ed.) Citation

SAS Institute Content Provider, et al. Step-By-Step Programming with Base SAS 9. 4. SAS Institute, 2013.