Wilberforce, W. (1789). The Speeches of Mr. Wilberforce, Lord Penrhyn, Mr. Burke, Sir W. Young, Alderman Newnham ... &c. &c. on a motion for the abolition of the slave trade,: In the House of Commons, May the 12th, 1789. To which are added, Mr. Wilberforce's twelve propositions. London: John Stockdale.

Wilberforce, William. The Speeches of Mr. Wilberforce, Lord Penrhyn, Mr. Burke, Sir W. Young, Alderman Newnham ... &c. &c. On a Motion for the Abolition of the Slave Trade,: In the House of Commons, May the 12th, 1789. To Which Are Added, Mr. Wilberforce's Twelve Propositions. London: John Stockdale, 1789.

Wilberforce, William. The Speeches of Mr. Wilberforce, Lord Penrhyn, Mr. Burke, Sir W. Young, Alderman Newnham ... &c. &c. On a Motion for the Abolition of the Slave Trade,: In the House of Commons, May the 12th, 1789. To Which Are Added, Mr. Wilberforce's Twelve Propositions. London: John Stockdale, 1789.