Lewis Carroll, Stuart Dodgson Collingwood (2014). “The Complete Works of Lewis Carroll With All the Original Illustrations + The Life and Letters of Lewis Carroll: All the Novels, Stories and Poems: Alice’s Adventures in Wonderland + Through the Looking-Glass, and What Alice Found There + Sylvie and Bruno + A Tangled Tale + What the Tortoise Said to Achilles + Puzzles from Wonderland + The Hunting of the Snark and much more”, p.195, e-artnow
Lewis Carroll, Stuart Dodgson Collingwood (2014). “The Complete Novels of Lewis Carroll With All the Original Illustrations + The Life and Letters of Lewis Carroll: Alice’s Adventures in Wonderland + Through the Looking-Glass, and What Alice Found There + Sylvie and Bruno + Sylvie and Bruno Concluded”, p.857, e-artnow