Cita APA (7th ed.)

Müller, T., & Schädler, A. (1964). Georg Petel: 1601-1634. Hirmer.

Cita Chicago (17th ed.)

Müller, Theodor, i Alfred Schädler. Georg Petel: 1601-1634. München: Hirmer, 1964.

Cita MLA (8th ed.)

Müller, Theodor, i Alfred Schädler. Georg Petel: 1601-1634. Hirmer, 1964.