G. Grappe, Le Musée Rodin, Paris, 1947, p. 140, no. 33 (marble version illustrated).
R. Descharnes and J.-F. Chabrun, Auguste Rodin, Lausanne, 1967, p. 50 (another cast illustrated in color, p. 51).
I. Jianou and C. Goldscheider, Rodin, Paris, 1967, p. 86.
L. Ambrosini and M. Facos, Rodin: The Cantor Gift to the Brooklyn Museum, New York, 1987, no. 9 (another cast illustrated, p. 59).
C. Goldscheider, Auguste Rodin: Catalogue raisonné de l'oeuvre sculpté, Paris, 1989, vol. I, p. 82, no. 62b (another cast and marble version illustrated, p. 83).
A.E. Elsen, Rodin's Art: The Rodin Collection of the Iris & B. Gerald Cantor Center for Visual Arts at Stanford University, New York, 2003, p. 493, no. 147 (another cast illustrated).
A. Le Normand-Romain, The Bronzes of Rodin: Catalogue of Works in the Musée Rodin, Paris, 2007, vol. II, pp. 450-451 (another cast illustrated, p. 450).