Cita APA (7a ed.)

Vogels, H., Du Boulay, G., Berbeka, J., & Drzewiecki, P. (2018). The Polish Post in the Free City of Danzig 1920-1939. Hans Vogels.

Cita Chicago Style (17a ed.)

Vogels, Hans, Giles Du Boulay, Janusz Berbeka, y Przemysław Drzewiecki. The Polish Post in the Free City of Danzig 1920-1939. Basel ; Gliwice: Hans Vogels, 2018.

Cita MLA (9a ed.)

Vogels, Hans, et al. The Polish Post in the Free City of Danzig 1920-1939. Hans Vogels, 2018.