Polish Research Centre. (1944). The bridgehead of East Prussia. Edinburgh: Polish Books Depot.
Cita Chicago Style (17a ed.)Polish Research Centre. The Bridgehead of East Prussia. Edinburgh: Polish Books Depot, 1944.
Cita MLA (8a ed.)Polish Research Centre. The Bridgehead of East Prussia. Edinburgh: Polish Books Depot, 1944.
Precaución: Estas citas no son 100% exactas.