APA

United States, . (1992). Understanding SSI. Baltimore: Social Security Administration, Office of Programs, Office of Supplemental Security Income.

Chicago

United States, . 1992. Understanding SSI. Baltimore: Social Security Administration, Office of Programs, Office of Supplemental Security Income.

Harvard

United States, . (1992). Understanding SSI. Baltimore: Social Security Administration, Office of Programs, Office of Supplemental Security Income.

MLA

United States, . Understanding SSI. Baltimore: Social Security Administration, Office of Programs, Office of Supplemental Security Income. 1992.