Columbia subject headings:
Harvard subject headings:
Historicism--History--20th century.
Knowledge, Theory of--History--20th century
Popper, Karl R. (Karl Raimund), 1902-1994--Contributions in theory of knowledge.
Science--Philosophy--History--20th century
Princeton subject headings:
Historicism--History--20th century.
Knowledge, Theory of--History--20th century.
Popper, Karl R. (Karl Raimund), 1902-1994.
Science--Philosophy--History--20th century.