APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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

Warning: These citations may not always be 100% accurate.