A.J. Finberg, A Complete Inventory of the Drawings of the Turner Bequest, London 1909, vol.II, p.818, CCLXIII 59, as Landscape, with mountain in mid-distance. c.1820–30.
Martin Butlin, Turner Watercolours, revised ed., London 1975, p.48, as ‘Italian Landscape with a Mountain in the Middle Distance’, c.1828–9, pl.14 (colour).
Andrew Wilton, Turner in the British Museum: Drawings and Watercolours, exhibition catalogue, Department of Prints and Drawings, British Museum, London 1975, p.66 no.94, reproduced, as ‘Landscape with a pink mountain’. ?c.1825.
Eric Shanes, Turner’s Watercolour Explorations 1810–1842, exhibition catalogue, Tate Gallery, London 1997, pp.21, 46, 95, 104 (p.46 no.20, reproduced in colour, as ‘Compositional, Colour and Underpainting Study for Powis Castle, Montgomery’. c.1834, p.95 Appendix I under ‘England and Wales Series’, as ‘Study for Powis Castle, Montgomery’. c.1834, p.104 Appendix II, as ‘Study: Powis Castle, Montgomery’).