Columbia subject headings:
Berkeley, George, 1685-1753.
Hume, David, 1711-1776.
Locke, John, 1632-1704.
Harvard subject headings:
Berkeley, George, 1685-1753
Hume, David, 1711-1776
Locke, John, 1632-1704
Princeton subject headings:
Berkeley, George, 1685-1753.
Hume, David, 1711-1776.
Locke, John, 1632-1704.