Cita APA (7a ed.)

(1983). SAS introductory guide / [edited by Jane T. Helwig].

Cita Chicago Style (17a ed.)

SAS Introductory Guide / [edited by Jane T. Helwig]. 1983.

Cita MLA (9a ed.)

SAS Introductory Guide / [edited by Jane T. Helwig]. 1983.