Columbia subject headings:
Economists--Biography.
Jews--Biography.
Marx, Karl, 1818-1883.
Philosophers--Biography.
Harvard subject headings:
Economists--Biography
Jews--Biography.
Marx, Karl, 1818-1883
Philosophers--Biography
Princeton subject headings:
Economists--Biography.
Jews--Biography.
Marx, Karl, 1818-1883.
Philosophers--Biography.