Telecommunications, frequency modulating broadcasting : agreement between the United States of America and Mexico amending the agreement of November 9, 1972, as amended, effected by exchange of notes signed at Washington September 7, 1984, February 28, March 21 and May 14, 1985.
Washington, D.C. : Dept. of State : For sale by the Supt. of Docs., U.S. G.P.O., [1993?]