APA aipamena

(1999). General studies manual for the UPSC civil services preliminary examination 1999. Tata McGraw-Hill.

Chicago Style aipamena

General Studies Manual for the UPSC Civil Services Preliminary Examination 1999. New Delhi: Tata McGraw-Hill, 1999.

MLA aipamena

General Studies Manual for the UPSC Civil Services Preliminary Examination 1999. Tata McGraw-Hill, 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.