APA (7th ed.) Citation

Borst, A. (2012). Die Katharer. Karolinger.

Chicago Style (17th ed.) Citation

Borst, Arno. Die Katharer. Wien [u.a.]: Karolinger, 2012.

MLA (9th ed.) Citation

Borst, Arno. Die Katharer. Karolinger, 2012.

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