(en) Frances Spalding, Judith Collins et Spalding & Collins, 20th Century Painters and Sculptors, Antique Collectors' Club, , 482 p. (ISBN978-1-85149-106-3, lire en ligne).
(en) Alan J. Horne, The Dictionary of 20th Century British Book Illustrators, Antique Collectors' Club, , 456 p. (ISBN978-1-85149-108-7, lire en ligne).
(en) Albert Garrett, British Wood Engraving of the 20th Century : A Personal View, Scolar Press, , 223 p. (ISBN978-0-85967-608-3, lire en ligne)
(en) Ignacio Manuel Altamirano, El Zarco, the Blue-eyed Bandit : Episodes of Mexican Life Between 1861-1863, Lumen Books, , 231 p. (ISBN978-0-930829-61-2, lire en ligne)
(en) Library of Congress Copyright Office, Catalog of Copyright Entries. Third Series : 1956, Copyright Office, Library of Congress, (lire en ligne)
(en) Brigid Peppin et Lucy Micklethwait, Book Illustrators of the Twentieth Century, Arco Pub., , 336 p. (ISBN978-0-668-05670-0, lire en ligne)
(en) British Book News, British Council, (lire en ligne)
(en) British Broadcasting Corporation, The BBC Book of the Countryside, (lire en ligne)
(en) Albert Garrett, British Wood Engraving of the 20th Century : A Personal View, Scolar Press, , 223 p. (ISBN978-0-85967-608-3, lire en ligne)
(en) John Verney, Under the Sun : Stories, Poems, Articles from 'Elizabethan' and Other Sources, Constable Young, (lire en ligne)
(en) Paul W. Nash, Sue Bradbury et Folio Society (London England), Folio 50 : A Bibliography of the Folio Society, 1947-1996, Folio Press, (lire en ligne)
