MLA

Johnson, James Weldon, 1871-1938. The autobiography of an ex-coloured man / James Weldon Johnson ; with an introduction by Carl Van Vechten.. 1927. https://collections.library.yale.edu/catalog/16730020.

APA, 6th edition

Johnson, James Weldon, 1871-1938. (1927)[The autobiography of an ex-coloured man / James Weldon Johnson ; with an introduction by Carl Van Vechten.]. https://collections.library.yale.edu/catalog/16730020.