Or search these titles individually:
- American Civil War Reference Library
- American Decades: 2000-2009
- American Decades, 10v
- Ancient Europe, 8000 B.C. to A.D. 1000: Encyclopedia of the Barbarian World
- Berkshire Encyclopedia of World History
- The Civil War Naval Encyclopedia
- Clothing through American History: The Civil War through the Gilded Age, 1861-1899
- Clothing through American History: The Federal Era through Antebellum, 1786-1860
- Colonial America Reference Library, 6v
- Dictionary of American History, 10v
- Encyclopedia of American Foreign Policy, 3v
- Encyclopedia of Latin American History and Culture, 6v
- Europe, 1450 to 1789: Encyclopedia of the Early Modern World, 6v
- Fashion, Costume, and Culture: Clothing, Headwear, Body Decorations, and Footwear through the Ages, 5v
- The Forties in America, 3v
- Gale Encyclopedia of U.S. Economic History, 2v
- Gale Encyclopedia of U.S. History: Government and Politics, 2v
- Gale Encyclopedia of World History: Governments, 2v
- Historic Events for Students: The Great Depression, 3v
- Korean War Reference Library, 2v
- Presidents: A Reference History
- St. James Encyclopedia of Popular Culture, 5v
- The Thirties in America, 3v
- World War I Reference Library, 4v
- World War II Reference Library, 5v
