Military Technology: Top Secret Clearance: Tanks of World War II Up Close
Military Technology: Top Secret Clearance: Small Arms Up Close
The CQ Press Guide to U.S. Elections
The Roots and Consequences of 20th-Century Warfare: Conflicts That Shaped the Modern World
Homeland Security Technologies for the 21st Century
The Gun Debate: An Encyclopedia of Gun Rights & Gun Control in the United States
Military Technology: Top Secret Clearance: Warplanes of World War II Up Close
Military Technology: Top Secret Clearance: Military Jets Up Close
Military Technology: Top Secret Clearance: Modern Warships Up Close
Economics in the 21st Century: Taxes: What They Are and How They Work
Illegal Immigration: A Reference Handbook
When Should State Secrets Stay Secret?: Accountability, Democratic Governance, and Intelligence
The Central Intelligence Agency: An Encyclopedia of Covert Ops, Intelligence Gathering, and Spies
Diplomacy and the Making of World Politics
9/11 and the War on Terror: A Documentary and Reference Guide
Government and the Economy: An Encyclopedia