
Strang, G. B. (1996). Once more unto the breach: Britain's guarantee to Poland, march 1939. Journal of contemporary history.
Citación estilo ChicagoStrang, G. Bruce. "Once More Unto the Breach: Britain's Guarantee to Poland, March 1939." Journal of Contemporary History 1996.
Cita MLAStrang, G. Bruce. "Once More Unto the Breach: Britain's Guarantee to Poland, March 1939." Journal of Contemporary History, 1996.
Precaución: Estas citas no son 100% exactas.