Columbia subject headings:
Harvard subject headings:
Abolitionists--England--History.
Abolitionists--France--History.
Abolitionists--United States--History.
Human rights--England--History.
Human rights--France--History.
Human rights--United States--History.
Slavery--Law and legislation--England--History.
Slavery--Law and legislation--France--History.
Slavery--Law and legislation--United States--History
Slavery--Political aspects--England--History.
Slavery--Political aspects--France--History.
Slavery--Political aspects--United States--History.
Princeton subject headings:
Abolitionists--England--History.
Abolitionists--France--History.
Abolitionists--United States--History.
Human rights--England--History.
Human rights--France--History.
Human rights--United States--History.
Slavery--Law and legislation--England--History.
Slavery--Law and legislation--France--History.
Slavery--Law and legislation--United States--History.
Slavery--Political aspects--England--History.
Slavery--Political aspects--France--History.
Slavery--Political aspects--United States--History.