G. Grappe, Catalogue du Musée Rodin , Paris, 1944, no. 166, p. 58 (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, nos. 78 & 79, pp. 162, 163 & 282 (marble version illustrated pls. 78 & 79).
R. Descharnes & J.F. Chabrun, Auguste Rodin , Lausanne, 1967, p. 130 (marble version illustrated p. 131).
I. Jianou & 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 & 108 (marble version illustrated p. 77).
J. de Caso & 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 [Rodin] , Paris, 1987, no. 79, p. 184 (marble version illustrated p. 185).
F.V. Grunfeld, Rodin, A Biography , New York, 1987, pp. 187-190, 221, 222, 260, 262, 275, 276, 281, 282, 342, 373, 374, 400, 457 & 577.
D. Finn & M. Busco, Rodin and his Contemporaries: The Iris and B. Gerald Cantor Collection , New York, 1991, p. 60 (another cast illustrated).
R. Masson & V. Mattiussi, Rodin , Paris, 2004, p. 40 (marble version illustrated p. 41; terracotta version illustrated p. 42).
A. Le Normand-Romain, The Bronzes of Rodin, Catalogue of the Works in the Musée Rodin , vol. I, Paris, 2007, no. S.472, pp. 159-163 (other casts illustrated pp. 158-163).