APA (7th ed.) Citation

Williamson, D. G. (2012). The Polish underground: 1939 - 1947 (1. publ. in Great Britain.). Pen & Sword Military.

Chicago Style (17th ed.) Citation

Williamson, David G. The Polish Underground: 1939 - 1947. 1. publ. in Great Britain. Barnsley: Pen & Sword Military, 2012.

MLA (9th ed.) Citation

Williamson, David G. The Polish Underground: 1939 - 1947. 1. publ. in Great Britain. Pen & Sword Military, 2012.

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