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 March 16 and April 14, 1987.
Washington, D.C. : Dept. of State : For sale by the Supt. of Docs., U.S. G.P.O., [1993?]