Drathen, D. v. (1992). Sigmar Polke: San Francisco Museum of Modern Art, 15.11.1990-13.1.1991 : Hirshhorn Museum and Sculpture Garden, Smithsonian Institution, Washington, D.C., 12.2.-7.5.1991 : Museum of Contemporary Art, Chicago, 20.7.-8.9.1991 : The Brooklyn Museum, New York, 11.10.-6.1.1992 / Doris von Drathen. Kunstforum.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Drathen, Doris von. "Sigmar Polke: San Francisco Museum of Modern Art, 15.11.1990-13.1.1991 : Hirshhorn Museum and Sculpture Garden, Smithsonian Institution, Washington, D.C., 12.2.-7.5.1991 : Museum of Contemporary Art, Chicago, 20.7.-8.9.1991 : The Brooklyn Museum, New York, 11.10.-6.1.1992 / Doris Von Drathen." Kunstforum 1992.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Drathen, Doris von. "Sigmar Polke: San Francisco Museum of Modern Art, 15.11.1990-13.1.1991 : Hirshhorn Museum and Sculpture Garden, Smithsonian Institution, Washington, D.C., 12.2.-7.5.1991 : Museum of Contemporary Art, Chicago, 20.7.-8.9.1991 : The Brooklyn Museum, New York, 11.10.-6.1.1992 / Doris Von Drathen." Kunstforum, 1992.