Social security administration. (2003). A guide to SSI for groups and organizations. USA: Social security administration.
Stile di citazione ChicagoSocial security administration. A Guide to SSI for Groups and Organizations. USA: Social security administration, 2003.
Citazione MLASocial security administration. A Guide to SSI for Groups and Organizations. USA: Social security administration, 2003.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.