Diederich, T. (1985). Köln im Hochmittelalter.
Chicago Style (17th ed.) CitationDiederich, Toni. Köln Im Hochmittelalter. 1985.
MLA (9th ed.) CitationDiederich, Toni. Köln Im Hochmittelalter. 1985.
Warning: These citations may not always be 100% accurate.