National Security Agency, "Appendix A to the Classified Annex to Department of Defense Procedures Under Executive Order 12333, Procedures for Monitoring Radio Communications of Suspected Narcotics Traffickers," December 21, 1984
National Security Agency, "Appendix A to the Classified Annex to Department of Defense Procedures Under Executive Order 12333, Procedures for Monitoring Radio Communications of Suspected Narcotics Traffickers," December 21, 1984