Defense weapon system : agreement between the United States of America and switzerland, amending the memorandum of understanding of February 25, 1998, as amended, signed at Washington and Berne March 23 and May 4, 1995.
Washington, D.C. : U.S. Dept. of State : For sale by the Supt. of Docs., U.S. G.P.O., [1999?]