Aviation, transport services : agreement between the United States of America and Switzerland, amending the annex to the interim agreement of August 3, 1945, as amended, effected by exchange of notes signed at Washington May 5 and July 12, 1993.
Washington, D.C. : Dept. of State : For sale by the Supt. of Docs., U.S. G.P.O., [1996?]