Zafran, E. M. (1988). Fifty old master paintings from the walters art gallery. Trustees of the Walters Art Gallery.
Chicago-referens (17:e uppl.)Zafran, Eric M. Fifty Old Master Paintings from the Walters Art Gallery. Baltimore: Trustees of the Walters Art Gallery, 1988.
MLA-referens (9:e uppl.)Zafran, Eric M. Fifty Old Master Paintings from the Walters Art Gallery. Trustees of the Walters Art Gallery, 1988.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.