APA aipamena

(2008). General studies manual-2008. Tata McGraw-Hill.

Chicago Style aipamena

General Studies Manual-2008. New Delhi: Tata McGraw-Hill, 2008.

MLA aipamena

General Studies Manual-2008. Tata McGraw-Hill, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.