Cita APA (7a ed.)

Zybok, O., & Fleckner, U. (2006). Douglas Kolk. Hatje Cantz.

Cita Chicago Style (17a ed.)

Zybok, Oliver, y Uwe Fleckner. Douglas Kolk. Ostfildern: Hatje Cantz, 2006.

Cita MLA (8a ed.)

Zybok, Oliver, y Uwe Fleckner. Douglas Kolk. Hatje Cantz, 2006.