W. Gibson (intro.), Barbara Hepworth: Sculptress, London, 1946, pp. 62, 65, pl. 50, wood version (BH 121 A) illustrated on the dust jacket.
H. Read (intro.), Barbara Hepworth: Carvings and Drawings, London, 1952, no. 71a and b, wood version (BH 121 A) illustrated.
Exhibition catalogue, Hepworth, New York, Galerie Chalette, 1959, n.p., no. 5, another cast exhibited.
J.P. Hodin, Barbara Hepworth, London, 1961, p. 165, no. 121.3, wood version (BH 121 A) illustrated.
Exhibition catalogue, Barbara Hepworth: An Exhibition of Sculpture from 1952-1962, London, Whitechapel Art Gallery, 1962, n.p., no. 6, another cast illustrated.
E. Newton, 'Rhythms of erosion', The Guardian, 10 May 1962, p. 7, another cast illustrated.
P. Rawstorne, 'The rhythms of Barbara Hepworth, Daily Herald, 11 May 1962, p. 4, another cast illustrated.
M. Levy, 'Impulse and Rhythm: The Artist at Work - 9', Studio, vol. 164, September 1962, p. 87, no. 833, another cast illustrated on the front cover.
M. Williams, 'Barbara Hepworth talks to Michael Williams', The Guardian, 17 April 1963, p. 6, another cast illustrated.
Exhibition catalogue, Barbara Hepworth, Turin, Galleria Civica d’Arte Moderna, 1965, p. 25, no. 4, another cast illustrated.
Exhibition catalogue, Barbara Hepworth, London, Tate Gallery, 1968, pp. 16, 55, no. 40, another cast illustrated.
Exhibition catalogue, Barbara Hepworth: 50 Sculptures from 1935 to 1970, London, Gimpel Fils, 1975, n.p., no. 7, another cast illustrated.
J. Burr, 'Immortality in Marble, Wood and Bronze', Apollo, vol. 102, new series no. 164, October 1975, p. 297, another cast illustrated.
C. McCorquodale, 'Barbara Hepworth: Gimpel Fils', Art International, vol. 19, no. 10, December 1975, p. 26, another cast illustrated.
B. Hepworth, A Pictorial Autobiography, London, 1985, pp. 49, 99, pl. 277, wood version (BH 121 A) and another cast illustrated.
Exhibition catalogue, Barbara Hepworth: The Art Gallery of Ontario Collection, Toronto, Art Gallery of Ontario, 1991, pp. 20, 23, no. 3, another cast illustrated.
Exhibition catalogue, Barbara Hepworth: A Retrospective, Liverpool, Tate Gallery, 1994, pp. 72, 81-82, 163, no. 32, plaster version (BH 121 B) illustrated.
D. Thistlewood (ed.), Barbara Hepworth Reconsidered, Liverpool, 1996, p. 128, wood version (BH 121 A) referenced.
P. Curtis, Barbara Hepworth, London, 1998, pp. 7, 34-35, 56, no. 1, wood version (BH 121 A) and plaster version (BH 121 B) illustrated.
M. Gale & C. Stephens, Barbara Hepworth: Works in the Tate Collection and the Barbara Hepworth Museum St Ives, London, 2004, pp. 81, 84-88, 94, 106, 145, 232, 236, 249, no. 16a and b, wood version (BH 121 A) and plaster version (BH 121 B) illustrated.
S. Bowness (ed.), Barbara Hepworth: Writings and Conversations, London, 2015, pp. 95, 209, 283, wood version (BH 121 A) illustrated and plaster version (BH 121 B) referenced.
P. Curtis and C. Stephens (eds.), exhibition catalogue, Barbara Hepworth: Sculpture for a Modern World, London, Tate Britain, 2015, p. 164, no. 88, wood version (BH 121 A) illustrated.
H. Bonett, 'The Sculptor as Archivist: Interpreting Barbara Hepworth's Legacy', Henry Moore Institute Essays on Sculpture, July 2015, pp. 26-27, no. 73.
S. Bowness, Barbara Hepworth: The Sculptor in the Studio, London, 2017, p. 88, fig. 89, plaster version (BH 121 B) illustrated.