——. Germantown Friends' Protest against Slavery, 1688. Fac-simile Copy. Philadelphia, 1880.
——. 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. Second edition. Germantown, 1760.
——. Proceedings in relation to the Presentation of the Address of the [Great Britain and Ireland] Yearly Meeting on the Slave-Trade and Slavery, to Sovereigns and those in Authority in the nations of Europe, and in other parts of the world, where the Christian religion is professed. Cincinnati, 1855.
——. Slavery and the Domestic Slave Trade in the United States. By the committee appointed by the late Yearly Meeting of Friends held in Philadelphia, in 1839. Philadelphia, 1841.
——. A View of the Present State of the African Slave Trade. Philadelphia, 1824.
Carl Garcis. Das Heutige Völkerrecht und der Menschenhandel. Eine völkerrechtliche Abhandlung, zugleich Ausgabe des deutschen Textes der Verträge von 20. Dezember 1841 und 29. März 1879. Berlin, 1879.
——. Der Sklavenhandel, das Völkerrecht, und das deutsche Recht. (In Deutsche Zeit- und Streit-Fragen, No. 13.) Berlin, 1885.
Agénor Étienne de Gasparin. Esclavage et Traite. Paris, 1838.
Joshua R. Giddings. Speech ... on his motion to reconsider the vote taken upon the final passage of the "Bill
for the relief of the owners of slaves lost from on Board the Comet and Encomium." [Washington, 1843.]