APA
E.U.A. Federal Old-Age and Survivors Insurance and Federal Disability Insurance Trust Funds, . (2006). The 2006 annual report of the Board of Trustees of the Federal Old-age and Survivors Insurance and the Federal Disability Insurance Trust Funds. Communication from the Board. Washington, D.C: Government Printing Office.
Chicago
E.U.A. Federal Old-Age and Survivors Insurance and Federal Disability Insurance Trust Funds, . 2006. The 2006 annual report of the Board of Trustees of the Federal Old-age and Survivors Insurance and the Federal Disability Insurance Trust Funds. Communication from the Board. Washington, D.C: Government Printing Office.
Harvard
E.U.A. Federal Old-Age and Survivors Insurance and Federal Disability Insurance Trust Funds, . (2006). The 2006 annual report of the Board of Trustees of the Federal Old-age and Survivors Insurance and the Federal Disability Insurance Trust Funds. Communication from the Board. Washington, D.C: Government Printing Office.
MLA
E.U.A. Federal Old-Age and Survivors Insurance and Federal Disability Insurance Trust Funds, . The 2006 annual report of the Board of Trustees of the Federal Old-age and Survivors Insurance and the Federal Disability Insurance Trust Funds. Communication from the Board. Washington, D.C: Government Printing Office. 2006.