APA (7. basım) Alıntı

Philippines. Government Service Insurance System. (1973). Performance and accomplishments of the GSIS as of June 30, 1973. [s.n.

Chicago Style (17. basım) Atıf

Philippines. Government Service Insurance System. Performance and Accomplishments of the GSIS as of June 30, 1973. Manila: [s.n, 1973.

MLA (9th ed.) Atıf

Philippines. Government Service Insurance System. Performance and Accomplishments of the GSIS as of June 30, 1973. [s.n, 1973.