Square Minus, 1969
Alan Wheatley Art
1971, Robert Adams – Retrospective Exhibition, City Art Gallery, Northampton (and toured by the Arts Council to Sheffield, Newcastle upon Tyne and the Camden Arts Centre, London), cat.no.57.
Alastair GRIEVE. The Sculpture of Robert Adams, Henry Moore Foundation/Lund Humphries, London, 1992, cat.565, p.226.