APA引文

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

芝加哥风格引文

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

MLA引文

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

警告：这些引文格式不一定是100％准确.