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..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Kessler, Herbert L., و 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.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Kessler, Herbert L., و 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.