Cita APA (7th ed.)

Stachelhaus, H. (1993). Zero: Heinz Mack, Otto Piene, Günther Uecker. Econ.

Cita Chicago (17th ed.)

Stachelhaus, Heiner. Zero: Heinz Mack, Otto Piene, Günther Uecker. Düsseldorf [u.a.]: Econ, 1993.

Cita MLA (8th ed.)

Stachelhaus, Heiner. Zero: Heinz Mack, Otto Piene, Günther Uecker. Econ, 1993.