APA (7th ed.) Citation

Ekdahl, S. (2007). The siege machines during the Baltic crusades. Institute of Archaeology and Ethnology Polish Academy of Sciences.

Chicago Style (17th ed.) Citation

Ekdahl, Sven. The Siege Machines During the Baltic Crusades. Institute of Archaeology and Ethnology Polish Academy of Sciences, 2007.

MLA (9th ed.) Citation

Ekdahl, Sven. The Siege Machines During the Baltic Crusades. Institute of Archaeology and Ethnology Polish Academy of Sciences, 2007.

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