Cita APA (7th ed.)

Plass, J. (2004). Lingua Universalis ; Global Wordless Understanding. dgv - Die Gestalten Verl..

Cita Chicago (17th ed.)

Plass, Johannes. Lingua Universalis ; Global Wordless Understanding. Berlin: dgv - Die Gestalten Verl., 2004.

Cita MLA (8th ed.)

Plass, Johannes. Lingua Universalis ; Global Wordless Understanding. dgv - Die Gestalten Verl., 2004.