Retaining the original : multiple originals, copies, and reproductions.

Studies in the history of art (Washington, D.C.) ; 20
Studies in the history of art (Washington, D.C.). Symposium papers ; 7
Washington : Hanover : National Gallery of Art ; Distributed by the University Press of New England, 1989.
Umfang/Format: 180 p., front. : ill. ; 28 cm.