Joseph Conrad (2015). “The Complete Novels of Joseph Conrad - All 20 Works in One Premium Edition: Including Unforgettable Titles like Heart of Darkness, Lord Jim, The Secret Agent, Nostromo, Under Western Eyes and Many More (With Author’s Letters, Memoirs and Critical Essays)”, p.4543, e-artnow
Joseph Conrad (2016). “Joseph Conrad: The Complete Novels [Nostromo, Heart of Darkness, Lord Jim, The Secret Agent, etc.] (Book House)”, p.1433, Book House