Office of the Legal Advisor, U.S. Department of State, Treaty Affairs Staff. This publication lists bilateral and multilateral treaties and other international agreements of...
Lexis: SATC (1920-1998); not currently updated; contains decisions from the Supreme Court of South Africa, and the High and Supreme Courts of Zimbabwe.
United Nations (2001) - UES; STA/ESA/PAD/SER.E/21 (pdf, 2001).
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Oxford ; New York : Oxford University Press, c2004
Tax Analysts - Lexis: WWCASE (1890-current) - access worldwide tax court opinions
Morris/Encore keyword search: yearbook and [name of the country]
RIA - available with a Checkpoint subscription; Yale does not subscribe.
Tax Analysts - Lexis: WWPROC file (1950-current) - more than 150 tax treaties as amended by protocols, exchanges of notes, etc. (treaties in file and current form)..
Tax Analysts - Lexis: WWCASE; cases from over 50 countries interpreting treaty cases