1974. Gavin Strang MP speaking at the RDG's 'Black and White Oil Conference'. Joseph Beuys and Buckminster Fuller in audience. Edinburgh Arts 1974.
1974. Letter (page 2/2) from Caroline Tisdall to Demarco, ref. Black and White Oil Conference. Edinburgh Arts 1974.
1974. Catalogue. Page 5/21. Edinburgh Arts 1974. Galleria del Cavallino. Giorgio Azzaroni. Bojan Bem.
1974. Catalogue. Page 6/21. Edinburgh Arts 1974. Galleria del Cavallino. Igino Legnaghi. Paolo Patelli.