Cita APA (7th ed.)

Kheiri, S., & Westheim, P. Orbis Pictus. Ernst Wasmuth Verlag.

Cita Chicago (17th ed.)

Kheiri, Sattar, i Paul Westheim. Orbis Pictus. Berlin: Ernst Wasmuth Verlag.

Cita MLA (8th ed.)

Kheiri, Sattar, i Paul Westheim. Orbis Pictus. Ernst Wasmuth Verlag.

Atenció: Aquestes cites poden no estar 100% correctes.