Narcotic drugs, additional cooperative arrangements to curb illegal traffic : agreements between the United States of America and Mexico, amending the agreement of March 29, 1983, as amended, effected by exchange of letters signed at Mexico November 25 and 29, 1985 and exchange of letters, signed at Mexico August 25 and September 29, 1986.
Washington, D.C. : Dept. of State : For sale by the Supt. of Docs., U.S. G.P.O., [1993?]