Anna Julia Cooper, Charles C. Lemert, Esme Bhan (1998). “The Voice of Anna Julia Cooper: Including A Voice from the South and Other Important Essays, Papers, and Letters”, p.187, Rowman & Littlefield
Samuel Richardson (1755). “A collection of the moral and instructive sentiments, maxims, cautions, and reflexions, contained in the histories of Pamela, Clarissa, and Sir Charles Grandison: Digested under proper heads, with references to the volume, ...”, p.4