Podruczny, G. (2024). The king and his fortresses: Frederick the Great and prussian permanent fortifications 1740-1786. Helion & Company.
Chicago-Zitierstil (17. Ausg.)Podruczny, Grzegorz. The King and His Fortresses: Frederick the Great and Prussian Permanent Fortifications 1740-1786. Warwick: Helion & Company, 2024.
MLA-Zitierstil (9. Ausg.)Podruczny, Grzegorz. The King and His Fortresses: Frederick the Great and Prussian Permanent Fortifications 1740-1786. Helion & Company, 2024.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.