Gaya APA

SCHLOTZHAUER, S, D., LITTELL, S, D. (1995). SAS system for elementary statistical analysis . United States of America: Sas Institute Inc.

Gaya MLA

SCHLOTZHAUER, Sandra, D.., LITTELL, Sandra, D.. "SAS system for elementary statistical analysis". United States of America: Sas Institute Inc, 1995. Buku.