Social Security System. Social Security Commission. (1961). 1961 annual report. Social Security Commission.
Style de citation Chicago (17e éd.)Social Security System. Social Security Commission. 1961 Annual Report. Manila: Social Security Commission, 1961.
Style de citation MLA (9e éd.)Social Security System. Social Security Commission. 1961 Annual Report. Social Security Commission, 1961.
Attention : ces citations peuvent ne pas être correctes à 100%.