Cita APA (7a ed.)

SAS Institute Content Provider, Morgan, D. P. A., & SAS Institute Contributor. (2014). The essential guide to SAS dates and times (2nd edition.). SAS.

Cita Chicago Style (17a ed.)

SAS Institute Content Provider, Derek P Author Morgan, y SAS Institute Contributor. The Essential Guide to SAS Dates and Times. 2nd edition. [Place of publication not identified]: SAS, 2014.

Cita MLA (9a ed.)

SAS Institute Content Provider, et al. The Essential Guide to SAS Dates and Times. 2nd edition. SAS, 2014.