Columbia subject headings:
Harvard subject headings:
Bastiat, Frédéric, 1801-1850. Sophismes économiques.
George, Henry, 1839-1897. Progress and poverty
Perry, Arthur Latham, 1830-1905
Protectionism.
Sumner, William Graham, 1840-1910.
Tariff--United States.
Princeton subject headings:
Bastiat, Frédéric, 1801-1850. Sophismes économiques.
George, Henry, 1839-1897. Progress and poverty.
Perry, Arthur Latham, 1830-1905.
Protectionism.
Sumner, William Graham, 1840-1910.
Tariff--United States.