Master paintings 1400 - 1850 : Winter 1991 - 92 ; [Ausstellungskatalog] / P & D Colnaghi & Co. Ltd., London; Colnaghi USA Ltd., New York, N.Y.; Colnaghi, Paris / [ed. and coordinated by Donald Garstang]. London [u.a.] : Colnaghi, 1991