How to cite
Andrew Wilton, ‘Offset of Study for the Composition of ‘Dolbadern Castle, North Wales’ c.1799–1800 by Joseph Mallord William Turner’, catalogue entry, May 2013, in David Blayney Brown (ed.), J.M.W. Turner: Sketchbooks, Drawings and Watercolours, Tate Research Publication, April 2016, https://www