Warden, P. G., and Jocelyn P. Small. "Amber, Ivory, and the Diffusion of the Orientalizing Style along the Adriatic Coast: Italic Amber in the University Museum (Philadelphia), in Murlo and the Etruscans: Art and Society in Ancient Etruria." In Murlo and the Etruscans: Art and Society in Ancient Etruria, by Richard D. De Puma and Jocelyn P. Small, 134-143. Madison: University of Wisconsin Press, 1994. See: pp. 135-137, no. 4, figs. 13.10-12
