Columbia subject headings:
Harvard subject headings:
Institutional economics.
Keynesian economics
Marxian economics.
Sraffa, Piero.
Veblen, Thorstein, 1857-1929
Princeton subject headings:
Institutional economics.
Keynesian economic.
Marxian economics.
Sraffa, Piero.
Veblen, Thornstein, 1857-1929.