Occasional discourse on the nigger question
MLA
Carlyle, Thomas, 1795-1881. Occasional discourse on the nigger question. [1849-1853]. https://collections.library.yale.edu/catalog/2007493.
APA, 6th edition
Carlyle, Thomas, 1795-1881. ([1849-1853])[Occasional discourse on the nigger question]. https://collections.library.yale.edu/catalog/2007493.