Columbia subject headings:
Slave trade--Great Britain--Early works to 1800.
Slavery--West Indies, British--Early works to 1800.
Wilberforce, William, 1759-1833. Speech of William Wilberforce, Esq. representative for the County of York, on Wednesday the 13th of May, 1789, on the question of the abolition of the slave trade.
Harvard subject headings:
Slave trade--Great Britain
Slavery--Great Britain--Colonies.
Slavery--Justification
Wilberforce, William, 1759-1833.
Princeton subject headings: