APA aipamena

(1997). Primer on the GSIS Act of 1997 (RA 8291). Government Service Insurance System.

Chicago Style aipamena

Primer on the GSIS Act of 1997 (RA 8291). [Metro Manila]: Government Service Insurance System, 1997.

MLA aipamena

Primer on the GSIS Act of 1997 (RA 8291). Government Service Insurance System, 1997.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.