Columbia subject headings:
Harvard subject headings:
Galilei, Galileo, 1564-1642
Knowledge, Theory of--History--20th century
Popper, Karl R. (Karl Raimund), 1902-1994.
Science--Philosophy--History
Princeton subject headings:
Galilei, Galileo, 1564-1642.
Knowledge, Theory of--History--20th century.
Popper, Karl R. (Karl Raimund), 1902-1994.
Science--Philosophy--History.