Cita APA (7th ed.)

Bottrop, P. (2020). Migratory birds. Sies + Höke.

Cita Chicago (17th ed.)

Bottrop, Peppi. Migratory Birds. Düsseldorf: Sies + Höke, 2020.

Cita MLA (8th ed.)

Bottrop, Peppi. Migratory Birds. Sies + Höke, 2020.