Nikolaus Urban : Performances : 1975.

MLA

Nikolaus Urban : Performances : 1975. Maastricht: Agora Studio, 1976.

APA

(1976). Nikolaus Urban : Performances : 1975. Maastricht: Agora Studio.

Chicago

Nikolaus Urban: Performances : 1975. Maastricht: Agora Studio, 1976.