APA (7th ed.) Citation

Pentz, P. (1997). The medieval citadel and its architecture. Fondation Carlsberg [u.a.].

Chicago Style (17th ed.) Citation

Pentz, Peter. The Medieval Citadel and Its Architecture. Copenhague: Fondation Carlsberg [u.a.], 1997.

MLA (9th ed.) Citation

Pentz, Peter. The Medieval Citadel and Its Architecture. Fondation Carlsberg [u.a.], 1997.

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