Cita APA (7a ed.)

Zack. (2013). Zack, the art: Zack [Pseud., d. i.: Oliver Frey]. Gmünder.

Cita Chicago Style (17a ed.)

Zack. Zack, the Art: Zack [Pseud., D. I.: Oliver Frey]. Berlin: Gmünder, 2013.

Cita MLA (8a ed.)

Zack. Zack, the Art: Zack [Pseud., D. I.: Oliver Frey]. Gmünder, 2013.