- The Open Society and Its Enemies (1+2)Karl Popper
- The Logic of Scientific DiscoveryKarl Popper
- Conjectures and refutationsKarl Popper, Michelle Irene et al.
- Popper selectionsKarl Popper
- The Poverty of HistoricismKarl Popper
- The self and its brainKarl Popper, John C Eccles
- Objective KnowledgeKarl Popper
- In Search of a Better WorldKarl Popper
- The Open Society and Its EnemiesKarl Popper
- Unended questKarl Popper
- The philosophy of Karl PopperKarl Popper, Schilpp, Paul Arthur
- All Life is Problem SolvingKarl Popper
- Quantum theory and the schism in physicsKarl Popper, Bartley, W. W., III et al.
- The Open UniverseKarl Popper
- Realism and the aim of scienceKarl Popper, Marta Sansigre Vidal
- Alle Menschen sind PhilosophenKarl Popper
- Evolutionary epistemology, rationality, and the sociology of knowledgeGerard Radnitzky, William Warren Bartley et al.
- After The Open SocietyKarl Popper
- Knowledge and the Body-Mind ProblemKarl Popper, M. A. Notturno
- Two Fundamental Problems of KnowledgeKarl Popper
- Hayat problem c ʹo zmektirKarl Popper
- Karl Poppers kritischer RationalismusKarl Popper
- A la busqueda del sentido. - 2.Ed.Karl Popper, Max Horkheimer et al.
