Columbia subject headings:
Beaumont, Gustave de, 1802-1866.
Tocqueville, Alexis de, 1805-1859.
United States--Civilization--1970-
United States--Civilization--19th century.
Harvard subject headings:
Beaumont, Gustave de, 1802-1866
Tocqueville, Alexis de, 1805-1859
United States--Civilization--1970-
United States--Civilization--19th century.
Princeton subject headings:
Beaumont, Gustave de, 1802-1866.
Tocqueville, Alexis de, 1805-1859.
United States--Civilization--1970-
United States--Civilization--19th century.