APA (7th ed.) Citation

United States. General Accounting Office & United States. Internal Revenue Service. (2001). Information security: IRS electronic filing systems. U.S. General Accounting Office.

Chicago Style (17th ed.) Citation

United States. General Accounting Office and United States. Internal Revenue Service. Information Security: IRS Electronic Filing Systems. [Washington, D.C.]: U.S. General Accounting Office, 2001.

MLA (9th ed.) Citation

United States. General Accounting Office and United States. Internal Revenue Service. Information Security: IRS Electronic Filing Systems. U.S. General Accounting Office, 2001.