Exhibition catalogue, Mary Martin, London, Tate Gallery, 1984, p. 58, no. 52, illustrated.
Exhibition catalogue, Mary Martin, 1907-1969: the end is always to achieve simplicity, Huddersfield, Huddersfield Art Gallery, 2004, p. 47, exhibition not numbered, illustrated.
A. Grieve, Constructed Abstract Art in England After the Second World War: A Neglected Avant-Garde, New Haven and London, 2005, p. 160, pl. 207.
British Council, 1st Nuremberg Biennale of Constructive Art, April - October 1969, catalogue not traced.
London, Tate Gallery, Mary Martin, October - November 1984, no. 52.
Huddersfield, Huddersfield Art Gallery, Mary Martin, 1907-1969: the end is always to achieve simplicity, October - December 2004, exhibition not numbered: this exhibition travelled to Cambridge, Kettle's Yard, January - February 2005; Eastbourne, Towner Art Gallery, March - September 2005; and Bournemouth, Russell-Cotes Art Gallery, June - September 2005.