APA (7th ed.) Citation

Helfferich, T. (2013). The Iron Princess: Amalia Elisabeth and the Thirty Years War. Harvard Univ. Press.

Chicago Style (17th ed.) Citation

Helfferich, Tryntje. The Iron Princess: Amalia Elisabeth and the Thirty Years War. Cambridge, Mass. [u.a.]: Harvard Univ. Press, 2013.

MLA (8th ed.) Citation

Helfferich, Tryntje. The Iron Princess: Amalia Elisabeth and the Thirty Years War. Harvard Univ. Press, 2013.