Cita APA (7th ed.)

Hofmann Armin. (2015). Graphic Design Manual (6TH.). Niggler.

Cita Chicago (17th ed.)

Hofmann Armin. Graphic Design Manual. 6TH. Switzerland: Niggler, 2015.

Cita MLA (9th ed.)

Hofmann Armin. Graphic Design Manual. 6TH. Niggler, 2015.