L. Maillard, Études sur quelques artistes originaux, August Rodin statuaire , Paris, 1899, pp. 117 & 120 (limestone version illustrated p. 117). R.M. Rilke, Auguste Rodin , Berlin, 1903, pp. 115-116. F. Lawton, The Life and Work of Auguste Rodin , London, 1906, p. 228. A. Rodin, L'Art, Entretiens réunis par Paul Gsell , Paris, 1911, pp. 31-32 (limestone version illustrated p. 32). W. Butterworth, A Visit to Rodin , London, 1912, p. 7. P. Gsell, 'En haut de la colline', in L'art et les artistes , no. 109, 1914, pp. 62-63. G. Grappe, Catalogue du Musée Rodin , Paris, 1927, no. 220, p. 82 (plaster version illustrated p. 82). G. Grappe, Le Musée Rodin , Paris, 1947, no. 83, p. 142 (large bronze version illustrated). A.E. Elsen, Rodin , New York, 1963, pp. 57-59 (large bronze version illustrated p. 56). A.C. Tacha, 'The Prodigal Son, Some New Aspects of Rodin's Sculpture', in Allen Memorial Art Museum Bulletin , vol. 22, no. 1, Autumn 1964, pp. 23-39 (large bronze versions illustrated, p. 24, fig. 1; p. 26, fig. 2 & p. 31, fig. 7; limestone version illustrated p. 26, fig. 3). R. Descharnes & J.-F. Chabrun, Auguste Rodin , Lausanne, 1967, p. 91 (large bronze version illustrated). I. Jianou & C. Goldscheider, Rodin , Paris, 1967, p. 92 (plaster version illustrated pl. 34). A.T. Spear, "A Note on Rodin's Prodigal Son and on the Relationship of Rodin's Marbles and Bronzes", Allen Memorial Art Museum Bulletin , 1969, vol. 27, pp. 24-36 (large bronze version illustrated p. 24, fig. 1). A.E. Elsen, Rodin , London, 1974, pp. 57-59 (large bronze version illustrated p. 56). J. Hawkins, Rodin Sculptures , London, 1975, no. 3, p. 18 (large bronze version illustrated pl. 5). J. de Caso & P.B. Sanders, Rodin's Sculpture: A Critical Study of the Spreckels Collection, San Francisco, 1977, no. 24, pp. 159-163 (large bronze version illustrated, p. 161; details of another large bronze version illustrated, pp. 158 & 162). J.A. Schmoll Eisenwerth, Rodin-Studien, Persönlichkeit, Werke, Wirkung, Bibliographie , Munich, 1983, pp. 288-289 (another cast illustrated p. 288). A.-B. Fonsmark, Rodin: La collection du Brasseur Carl Jacobsen à la Glyptothèque , Copenhagen, 1988, no. 16, pp. 103-105 (limestone version illustrated p. 104). Y. Le Pichon & C.-M. Lavrillier, Rodin: La porte de l'enfer , Lausanne, 1988, p. 183 (limestone version illustrated pp. 183 & 185). M.L. Levkoff, Rodin in His Time: The Cantor Gifts to the Los Angeles County Museum of Art , Los Angeles, 1994, pp. 82-83, 205 & 223 (large bronze version illustrated p. 83). A. Le Normand-Romain, The Bronzes of Rodin, Catalogue of Works in the Musée Rodin , vol. I, Paris, 2007, no. S. 6693, pp. 319-322 (another cast illustrated p. 319; large bronze and limestone version illustrated p. 321).