Quantum theory and the schism in physicsKarl Popper, Bartley, W. W., III, I. I. I. W. W. Bartley · First published 1980Open the Tome
Conjectures and refutationsKarl Popper, Michelle Irene, de Launay Marc B., Melitta Mew · First published 1962Open the Tome
The Open Society and Its EnemiesKarl Popper · First published 1945 · Latest edition 1952Open the Tome