Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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