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The Raj : India and the British, 1600 - 1947 : [published for the exhibition at the National Portrait Gallery, London, from 19 October 1990 to 17 March 1991]
London : National Portrait Gallery Publ., 1990
Kunstbibliothek - Staatliche Museen zu Berlin
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Franklin and his friends : portraying the man of science in eighteenth-century America
Philadelphia, Pa. : University of Pennsylvania Press, 1999
Hamburger Kunsthalle