Richard Falckenberg

• History of Modern Philosophy
• Filosofía Alemana Desde Kant
• Geschichte der Neueren Philosophie Von Nikolaus Von Kues Bis Zur Gegenwart
• Hermann Lotze : Erster Teil
• History of Modern Philosophy
• History of Modern Philosophy
• History of Modern Philosophy
• History of Modern Philosophy from Nicolas of Cusa to the Present Time
• History of Modern Philosophy Volume 1
• History of Modern Philosophy Volume 2
• History of modern philosophy, from Nicolas of Cusa to the present time. 3d American from the 2d German ed
• Über Die Gegenwärtige Lage der Deutschen Philosophie