Georges Grappe, Catalogue du Musée Rodin, Paris, 1929, no. 114, illustration of the marble version p. 57 Georges Grappe, Catalogue du Musée Rodin, Paris, 1944, no. 71, illustration of the larger marble Georges Grappe, Le Musée Rodin, Paris, 1947, p. 142, pl. 71, illustration of the marble version Cécile Goldscheider, Rodin, Paris, 1962, illustration of the marble version p. 49 Albert E. Elsen, Rodin, New York, 1963, illustration of the larger bronze version p. 63 Bernard Champigneulle, Rodin, London, 1967, nos. 78 & 79, illustration of the marble version pp. 162-163 Robert Descharnes & Jean-François Chabrun, Auguste Rodin, Lausanne, 1967, colour illustration of the marble version p. 131 Ionel Jianou & Cécile Goldscheider, Rodin, Paris, 1967, illustration of the marble version pl. 55 Cécile Goldscheider, Rodin Sculptures, London, 1970, no. 49, illustration of the marble version p. 121 John L. Tancock, The Sculpture of Auguste Rodin, Philadelphia, 1976, illustration of the marble version p. 77 Nicole Barbier, Marbres de Rodin: Collection du Musée, Paris, 1987, no. 79, illustration of the marble version p. 185 Albert E. Elsen, Rodin's Art, The Rodin Collection of the Iris & B. Gerald Cantor Center for the Visual Arts at Stanford University, New York, 2003, pp. 214-215, no. 49, illustration of the larger bronze version Antoinette le Normand-Romain, The Bronzes of Rodin, Paris, 2007, vol. I, illustration of another cast p. 161.