Columbia subject headings:
Social security--United States--Data processing.
United States. Social Security Administration--Data processing.
United States. Social Security Administration--Procurement.
Harvard subject headings:
Administrative agencies--United States--Data processing
United States. Social Security Administration--Data processing.
United States. Social Security Administration--Procurement.
Princeton subject headings:
United States. Social Security Administration--Data processing.
United States. Social Security Administration--Procurement.