Kessler, H. L., & Wolf, G. (1998). The Holy Face and the paradox of representation: Papers from a colloquium held at the Bibliotheca Hertziana, Rome and the Villa Spelman, Florence, 1996 / Ed. with an Introd. by Herbert L. Kessler and Gerhard Wolf. Nuova Alfa Ed..
Chicago-referens (17:e uppl.)Kessler, Herbert L., och Gerhard Wolf. The Holy Face and the Paradox of Representation: Papers from a Colloquium Held at the Bibliotheca Hertziana, Rome and the Villa Spelman, Florence, 1996 / Ed. with an Introd. by Herbert L. Kessler and Gerhard Wolf. Bologna: Nuova Alfa Ed., 1998.
MLA-referens (8:e uppl.)Kessler, Herbert L., och Gerhard Wolf. The Holy Face and the Paradox of Representation: Papers from a Colloquium Held at the Bibliotheca Hertziana, Rome and the Villa Spelman, Florence, 1996 / Ed. with an Introd. by Herbert L. Kessler and Gerhard Wolf. Nuova Alfa Ed., 1998.