Narcotic drugs

additional cooperative arrangements to curb illegal traffic : agreements between the United States of America and Mexico, amending the agreement of June 2, 1977, as amended, effected by exchange of letters signed at Mexico January 13 and March 12, 1986, and exchange of letters, signed at Mexico March 13 and April 7, 1986, and exchange of letters, signed at Mexico June 3 and July 1, 1986, and exchange of letters, signed at Mexico November 3 and December 18, 1986.

de Mexico.