1909
A.J. Finberg, A Complete Inventory of the Drawings of the Turner Bequest, London 1909, vol.I, p.452, CLVIII 23, as ‘Do.’ (i.e. ditto: ‘Study of sky’).
1975
Gerald Wilkinson, Turner’s Colour Sketches 1820–34, London 1975, reproduced in colour p.21 (bottom), as CLVIII ‘61’.
2016
David Blayney Brown, J.M.W. Turner: The ‘Skies’ Sketchbook, London 2016, reproduced in colour p.[65].
2017
Alan Davis, ‘J.M.W. Turner: The ‘Skies’ Sketchbook with an introduction by David Blayney Brown’, Turner Society News, no.127, Spring 2017, pp.25–7.