P. A. Lemoisne, Degas et son Oeuvre, Vols. I-IV, Paule Brame & C.M. de Hauke, 1946-9, reproductions, copy no. 714, from the edition of 1,030, original linen boards, protective tissue, 320 x 245 mm.; J. Adhémar & F. Cachin, Degas Radierungen, Lithographien, Monotypien, Hirmer, Munich, 1973; E. P. Janis, Degas Monotypes Essay, Catalogue & Checklist, Fogg Art Museum, Cambridge, 1968; and one other on Degas (7)