Ellen Anderson Gholson Glasgow, Pamela R. Matthews (2005). “Perfect Companionship: Ellen Glasgow's Selected Correspondence with Women”, p.14, University of Virginia Press
"The 100 best nonfiction books: No 68 - Narrative of the Life of Frederick Douglass, an American Slave by Frederick Douglass (1845)" by Robert McCrum, www.theguardian.com. May 22, 2017.
Lewis Carroll, Roger Lancelyn Green, John Tenniel (1998). “Alice's Adventures in Wonderland: And, Through the Looking-glass and what Alice Found There”, p.22, Oxford University Press, USA