Cita APA (7a ed.)
Eberhardt, P. Ethnic problems in Poland and in her eastern neighbours.
Cita Chicago Style (17a ed.)
Eberhardt, Piotr. Ethnic Problems in Poland and in Her Eastern Neighbours.
Cita MLA (9a ed.)
Eberhardt, Piotr. Ethnic Problems in Poland and in Her Eastern Neighbours.
Precaución: Estas citas no son 100% exactas.