United States. President (2009-2017 : Obama). (2014). The protocol amending the Tax Convention with Spain: Message from the President of the United States transmitting the protocol amending the Convention Between the United States of America and the Kingdom of Spain for the Avoidance of Double Taxation and the Prevention of Fiscal Evasion with Respect to Taxes on Income and its Protocol, signed at Madrid on February 22, 1990. U.S. Government Printing Office.
Chicago Style (17th ed.) CitationUnited States. President (2009-2017 : Obama). The Protocol Amending the Tax Convention with Spain: Message from the President of the United States Transmitting the Protocol Amending the Convention Between the United States of America and the Kingdom of Spain for the Avoidance of Double Taxation and the Prevention of Fiscal Evasion with Respect to Taxes on Income and Its Protocol, Signed at Madrid on February 22, 1990. Washington: U.S. Government Printing Office, 2014.
MLA (9th ed.) CitationUnited States. President (2009-2017 : Obama). The Protocol Amending the Tax Convention with Spain: Message from the President of the United States Transmitting the Protocol Amending the Convention Between the United States of America and the Kingdom of Spain for the Avoidance of Double Taxation and the Prevention of Fiscal Evasion with Respect to Taxes on Income and Its Protocol, Signed at Madrid on February 22, 1990. U.S. Government Printing Office, 2014.