A. Haskell, The Sculptor Speaks, Jacob Epstein to Arnold Haskell: A Series of Conversations on Art, London, 1931, p. 180.
J. Epstein, Let There Be Sculpture, New York, 1940, pp. 108-109.
J. Epstein, Epstein: An Autobiography, New York, 1955, p. 90.
R. Buckle, Jacob Epstein: Sculptor, Cleveland, 1963, pp. 114-115, another cast illustrated, pls. 180 and 185).
E. Silber, The Sculpture of Jacob Epstein: with a complete catalogue, Oxford, 1986, p. 151, no. 131 (another cast illustrated).