Frei, G., & Henschel, M. (2010). Sigmar Polke: [. on the occasion of the exhibition.] / Thomas Ammann Fine Art AG. Text by Martin Henschel. Ed. Georg Frei.
Chicago-Zitierstil (17. Ausg.)Frei, Georg, 与 Martin Henschel. Sigmar Polke: [. on the Occasion of the Exhibition.] / Thomas Ammann Fine Art AG. Text by Martin Henschel. Ed. Georg Frei. Zürich, 2010.
MLA-Zitierstil (8. Ausg.)Frei, Georg, 与 Martin Henschel. Sigmar Polke: [. on the Occasion of the Exhibition.] / Thomas Ammann Fine Art AG. Text by Martin Henschel. Ed. Georg Frei. 2010.
警告：这些引文格式不一定是100％准确.