APA (7th ed.) Citation

Witkowski, P. (2015). Polscy spadochroniarze 1939-1945. Bellona.

Chicago Style (17th ed.) Citation

Witkowski, Piotr. Polscy Spadochroniarze 1939-1945. Warszawa: Bellona, 2015.

MLA (9th ed.) Citation

Witkowski, Piotr. Polscy Spadochroniarze 1939-1945. Bellona, 2015.

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