Chicago: Lewis Carroll, A Riddle Original Sources, accessed April 3, 2025, http://originalsources.com/Document.aspx?DocID=7TGHDXB15FU9KY2.
MLA: Carroll, Lewis. A Riddle, Original Sources. 3 Apr. 2025. http://originalsources.com/Document.aspx?DocID=7TGHDXB15FU9KY2.
Harvard: Carroll, L, A Riddle. Original Sources, retrieved 3 April 2025, from http://originalsources.com/Document.aspx?DocID=7TGHDXB15FU9KY2.