American Civil War: The Definitive Encyclopedia and Document Collection [6 volumes]

A Short History of the Civil War at Sea

The Civil War Naval Encyclopedia: [2 volumes]

The Roots and Consequences of Civil Wars and Revolutions: Conflicts That Changed World History

The Roots and Consequences of Civil Wars and Revolutions: Conflicts That Changed World History

The Encyclopedia of the Mexican-American War: A Political, Social, and Military History [3 volumes]

The Encyclopedia of the Mexican-American War: A Political, Social, and Military History [3 volumes]

Brigadier General John D. Imboden: Confederate Commander in the Shenandoah

The Encyclopedia of the Wars of the Early American Republic, 1783–1812: A Political, Social, and Military History [3 volumes]

U.S. Conflicts in the 21st Century: Afghanistan War, Iraq War, and the War on Terror [3 volumes]

U.S. Conflicts in the 21st Century: Afghanistan War, Iraq War, and the War on Terror [3 volumes]

The Encyclopedia of the Wars of the Early American Republic, 1783–1812: A Political, Social, and Military History [3 volumes]

The European Powers in the First World War: An Encyclopedia

U.S. Leadership in Wartime: Clashes, Controversy, and Compromise [2 volumes]

The Encyclopedia of the Spanish-American and Philippine-American Wars: A Political, Social, and Military History [3 volumes]

Almanac of American Military History: [4 volumes]

Battles That Changed American History: 100 of the Greatest Victories and Defeats

Battles That Changed American History: 100 of the Greatest Victories and Defeats

American Revolution: The Essential Reference Guide