Slavery and the internal slave trade in the United States of North America being replies to questions transmitted by the Committee of the British and Foreign Anti-slavery Society for the abolition of slavery and the slave trade throughout the world (T. Ward and Co, 1841)
Goldsmiths'-Kress no. 32408. - OCLC, 18154282. - Prepared for the press and published under the direction of a committee appointed by the British and Foreign Anti-slavery Society. Cf. Pref. - Reproduction of original from Goldsmiths' Library, University of London