"Slave trade." . . "The slave-trade indispensable : in answer to the speech of William Wilberforce, Esq. on the 13th of May, 1789. By a West-India-merchant"@en . . "Early works"@en . . . "The slave-trade indispensable: in answer to the speech of William Wilberforce, esq. on the 13th of May, 1789"@en . . "The slave -trade indispensable in answer to the speech of William Wilberforce, Esq., on the 13th of May, 1789"@en . . "The slave-trade indispensable in answer to the speech of William Wilberforce, Esq., on the 13th of May, 1789"@en . . . . . . . . . . . . . . . . "The slave-Trade indispensable in answer to the speech of William Wilberforce, Esq. on the 13th of May, 1789. By a West-India-Merchant" . . . . . . . . . "The slave-trade indispensable in answer to the speech of William Wilberforce, Esq. on the 13th of May, 1789. By a West-India-merchant"@en . "The slave-trade indispensable in answer to the speech of William Wilberforce, Esq. on the 13th of May, 1789. By a West-India-merchant" . . . "The slave-trade indispensable in answer to the speech of William Wilberforce, esq. on the 13th of May, 1789"@en . . . . . "The slave-trade indispensable : in answer to the speech of William Wilberforce, Esq. on the 13th of May 1789" . "Slavery Colonies Great Britain." . . . . "Slavery Colonies." . . "Slavery Justification." . . "Slave trade Great Britain." . . "Great Britain." . .