APA (7th ed.) Citation

Strang, G. B. (1996). Once more into the breach: Britain's guarantee to Poland ; march 1939. Journal of contemporary history.

Chicago Style (17th ed.) Citation

Strang, G. Bruce. "Once More into the Breach: Britain's Guarantee to Poland ; March 1939." Journal of Contemporary History 1996.

MLA (8th ed.) Citation

Strang, G. Bruce. "Once More into the Breach: Britain's Guarantee to Poland ; March 1939." Journal of Contemporary History, 1996.

Warning: These citations may not always be 100% accurate.