Themes and Variations : The Drawings of Augustus John 1901-1931 (exhibition Cardiff, National Museums & Galleries of Wales, 20.07 - 01.09.1996 ; London, Spink & Son Ltd, 09.09 - 04.10.1996 ; Conwy, Royal Cambrian Academy, 02.11 - 01.12.1996). - Holroyd, Michael (National Museums and Galleries of Wales,, 1996)