Aviation, transport services : agreement between the United States of America and the Union of Soviet Socialist Republics, amending and supplementing the agreement of November 4, 1966, as amended, effected by exchange of notes, signed at Washington December 9, 1987.
Washington, D.C. : Dept. of State : For sale by the Supt. of Docs., U.S. G.P.O., [1993?]