Cita APA (7th ed.)

Schmid, K. (1989). Kunstraub in den Museen: "Null Problemo". Kunstforum.

Cita Chicago (17th ed.)

Schmid, Karlheinz. "Kunstraub in Den Museen: "Null Problemo"." Kunstforum 1989.

Cita MLA (8th ed.)

Schmid, Karlheinz. "Kunstraub in Den Museen: "Null Problemo"." Kunstforum, 1989.

Atenció: Aquestes cites poden no estar 100% correctes.