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)..
World Treaty Index is a new database that aspires to contain every known international agreement of the 20th century by January 2011 -- over 85,000 treaties; calculate...
Edited by C. Wiktor. Dobbs Ferry , New York : Oceana Publications, Inc., 1976-1994.
Edited by Igor Kavass. Buffalo , New York : William S. Hein & Co., Inc., 1991 (2008 Supplement). Replaces in their entirety U.S.T. Cumulative Indices.
Compiled by I. Kavass & M. Michael. Buffalo , New York : William S. Hein & Co., Inc., 1975.
Washington , D.C.: United States Department of State (1950-1984)