Lewis Carroll (2014). “The Poetry Collections of Lewis Carroll: Early Verse + Puzzles from Wonderland + Prologues to Plays + Rhyme? And Reason? + College Rhymes and Notes by an Oxford Chiel + Acrostics, Inscriptions and Other Verses + Three Sunsets and Other Poems + The Hunting of the Snark”, p.149, e-artnow
Lewis Carroll (2015). “Alice's Adventures in Wonderland and Through the Looking-Glass: 150th-Anniversary Edition (Penguin Classics Deluxe Edition)”, p.188, Penguin
Lewis Carroll (2015). “Alice's Adventures in Wonderland and Through the Looking-Glass: 150th-Anniversary Edition (Penguin Classics Deluxe Edition)”, p.188, Penguin