Schomburg Center for Research in Black Culture, Manuscripts, Archives and Rare Books Division, The New York Public Library. "Observations on the inslaving, importing, and purchasing of Negroes; with some advice thereon, extracted from the epistle of the yearly-meeting of the people called Quakers held at London in the year 1748." The New York Public Library Digital Collections. 1760. http://digitalcollections.nypl.org/items/510d47e3-8b23-a3d9-e040-e00a18064a99
Schomburg Center for Research in Black Culture, Manuscripts, Archives and Rare Books Division, The New York Public Library. "Observations on the inslaving, importing, and purchasing of Negroes; with some advice thereon, extracted from the epistle of the yearly-meeting of the people called Quakers held at London in the year 1748." New York Public Library Digital Collections. Accessed June 16, 2019. http://digitalcollections.nypl.org/items/510d47e3-8b23-a3d9-e040-e00a18064a99
Schomburg Center for Research in Black Culture, Manuscripts, Archives and Rare Books Division, The New York Public Library. (1760). Observations on the inslaving, importing, and purchasing of Negroes; with some advice thereon, extracted from the epistle of the yearly-meeting of the people called Quakers held at London in the year 1748. Retrieved from http://digitalcollections.nypl.org/items/510d47e3-8b23-a3d9-e040-e00a18064a99
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Observations on the inslaving, importing, and purchasing of Negroes; with some advice thereon, extracted from the epistle of the yearly-meeting of the people called Quakers held at London in the year 1748., (1760)
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|author=Digital Collections, The New York Public Library |accessdate=June 16, 2019 |publisher=The New York Public Library, Astor, Lennox, and Tilden Foundation}}</ref>
![Jamaica, as it was, as it is, and as it may be: comprising interesting topics for absent proprietors, merchants &c., and valuable hints to persons intending to emigrate to the island: also an authentic narrative of the Negro insurrection in 1831; with a faithful detail of the manners, customs and habits of the colonists, and a description of the country, climate, productions, &c., including an abridgment of the slave law. By a retired military officer [Microfilm]](https://images.nypl.org/index.php?id=1610837&t=b)
