APA (7th ed.) Citation

(1978). SAS introductory guide / by Jane T. Helwig.

Chicago Style (17th ed.) Citation

SAS Introductory Guide / by Jane T. Helwig. 1978.

MLA (9th ed.) Citation

SAS Introductory Guide / by Jane T. Helwig. 1978.

Warning: These citations may not always be 100% accurate.