G. Grappe, Catalogue du Musée Rodin, Paris, 1944, p. 58, no. 166 (marble version illustrated). C. Goldscheider, Rodin, sa vie, son oeuvre, son héritage, Paris 1962, p. 49 (marble version illustrated). A.E. Elsen, Rodin, New York, 1963, p. 62 (another cast illustrated, p. 63). B. Champigneulle, Rodin, London, 1967, pp. 162-163, nos. 78-79 (marble version illustrated). R. Descharnes and J.-F. Chabrun, Auguste Rodin, Lausanne, 1967, p. 131 (marble version illustrated in color). I. Jianou and C. Goldscheider, Rodin, Paris, 1967, p. 100 (marble version illustrated, pls. 54-55).L. Goldscheider, Rodin Sculptures, A Critical Study of the Spreckels Collection, London, 1970, pl. 49 (marble version illustrated). J.L. Tancock, The Sculpture of Auguste Rodin, Philadelphia, 1976, pp. 72, 90 and 108 (marble version illustrated, p. 77).J. de Caso and P.B. Sanders, Rodin's Sculpture, San Francisco, 1977, pp. 149-152 (another cast illustrated, p. 148). N. Barbier, Marbres de Rodin: Collection du Musée, Paris, 1987, p. 184, no. 79 (marble version illustrated, p. 185). F.V. Grunfeld, Rodin, A Biography, New York, 1987, pp. 187-90, 221-22, 260, 262, 275-276, 281-282, 342, 373-374, 400, 457 and 577. D. Finn and M. Busco, Rodin and his Contemporaries: The Iris and B. Gerald Cantor Collection, New York, 1991, p. 60 (another cast illustrated; detail of another cast illustrated, p. 61). R. Masson and V. Mattiussi, Rodin, Paris, 2004, p. 40 (marble version illustrated in color, p. 41; terracotta version illustrated in color, p. 42).A. Le Normand-Romain, The Bronzes of Rodin: Catalogue of the Works in the Musée Rodin, Paris, 2007, vol. 1, pp. 159-163, no. S472 (another cast illustrated, pp. 158; another cast illustrated again in color, p. 159).