Columbia subject headings:
African Americans--Legal status, laws, etc.
Slavery--Canada--Cases.
Slavery--Great Britain--Cases.
Slavery--Jamaica--Cases.
Slavery--United States--Cases.
Harvard subject headings:
African Americans--Legal status, laws, etc.
Slavery--Canada--Cases.
Slavery--Great Britain--Cases.
Slavery--Jamaica--Cases.
Slavery--United States--Cases.
Princeton subject headings:
African Americans--Legal status, laws, etc.
Slavery--Canada--Cases.
Slavery--Great Britain--Cases.
Slavery--Jamaica--Cases.
Slavery--United States--Cases.