Library of Congress. Congressional Research Service & ProQuest (Firm). (2007). Mexico's Counter-Narcotics Efforts Under Zedillo, December 1994 to March 1999. [publisher not identified].
Chicago Style (17th ed.) CitationLibrary of Congress. Congressional Research Service and ProQuest (Firm). Mexico's Counter-Narcotics Efforts Under Zedillo, December 1994 to March 1999. [Place of publication not identified]: [publisher not identified], 2007.
MLA (9th ed.) CitationLibrary of Congress. Congressional Research Service and ProQuest (Firm). Mexico's Counter-Narcotics Efforts Under Zedillo, December 1994 to March 1999. [publisher not identified], 2007.
Warning: These citations may not always be 100% accurate.