Cita APA (7th ed.)
Wiedemann, J. (2015). Logo design (1a. ed.). Taschen.
Cita Chicago (17th ed.)
Wiedemann, Julius. Logo Design. 1a. ed. Colonia: Taschen, 2015.
Cita MLA (9th ed.)
Wiedemann, Julius. Logo Design. 1a. ed. Taschen, 2015.
Atenció: Aquestes cites poden no estar 100% correctes.