Cita APA (7th ed.)
Janssen, V. (1989). The art of George Quaintance. Janssen-Verlag.
Cita Chicago (17th ed.)
Janssen, Volker. The Art of George Quaintance. Berlin: Janssen-Verlag, 1989.
Cita MLA (9th ed.)
Janssen, Volker. The Art of George Quaintance. Janssen-Verlag, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.