APA aipamena

Social Security System. Social Security Commission. (1961). 1961 annual report. Social Security Commission.

Chicago Style aipamena

Social Security System. Social Security Commission. 1961 Annual Report. Manila: Social Security Commission, 1961.

MLA aipamena

Social Security System. Social Security Commission. 1961 Annual Report. Social Security Commission, 1961.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.