• 167 Law Library
• 141 Wisconsin Historical Society Library

• 72 Microforms

• 62 Law and legislation
• 58 Noncitizens
• 54 Illegal immigration
• 46 Prevention
• 42 Emigration and immigration
• 38 Emigration and immigration law
• 34 Immigration enforcement
• 30 Legal status, laws, etc
• 30 National security
• 28 Visas
• 24 Rules and practice
• 24 Terrorism
• 23 Border security
• 21 Detention of persons
• 21 United States. Department of Homeland Security
• 14 United States. Department of Justice
• 13 Civil rights
• 13 Noncitizen criminals
• 12 Economic aspects
• 12 Electronic surveillance
• 11 Privacy, Right of
• 11 Refugees
• 11 United States
• 10 Admission of nonimmigrants

• 106 United States
• 7 United States. Government Accountability Office
• 3 Clinton, Bill, 1946-
• 3 United States. Congress. House. Permanent Select Committee on Intelligence
• 3 United States. President (1993-2001 : Clinton)
• 2 Bush, George, 1924-2018
• 2 United States. (98th, 2nd session : 1984)
• 2 United States. Congress. House. Committee on Energy and Commerce
• 2 United States. Congress. House. Committee on Financial Services
• 2 United States. Congress. House. Committee on Government Reform
• 2 United States. Congress. House. Committee on International Relations
• 2 United States. Congress. House. Committee on Oversight and Government Reform
• 2 United States. Congress. House. Committee on Ways and Means
• 2 United States. President (1989-1993 : Bush)
• 1 Ford, Jess T
• 1 Gambler, Rebecca
• 1 Lasowski, Anne-Marie
• 1 Library of Congress. Education and Public Welfare Division
• 1 Simmons, George Abel, 1791-1857
• 1 United States. Congress. House. Committee on Armed Services
• 1 United States. Congress. House. Committee on Foreign Affairs
• 1 United States. Congress. House. Committee on Government Reform. Subcommittee on National Security, Emerging Threats, and International Relations
• 1 United States. Congress. House. Committee on Homeland Security
• 1 United States. Congress. House. Committee on Resources

• 275 English

• 272 United States
• 7 Mexican-American Border Region
• 2 Cuba
• 2 Guantánamo Bay Naval Base
• 2 Outer space
• 2 Southern States
• 1 El Paso
• 1 European Union countries
• 1 Illinois
• 1 Iran
• 1 Marion
• 1 Mexico
• 1 Peru
• 1 Saudi Arabia
• 1 Texas
• 1 États-Unis

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