Columbia subject headings:
African Americans--History--1877-1964.
Sociologists--United States--Attitudes--History.
Sociology--United States--History.
Harvard subject headings:
African Americans--History--1877-1964
Sociologists--United States--Attitudes--History.
Sociology--United States--History
Princeton subject headings:
African Americans--History--1877-1964.
Sociologists--United States--Attitudes--History.
Sociology--United States--History.