APA (7th ed.) Citation

De Giorgio, C., Freller, T., & Cilia, D. (2010). Die Johannes-Kathedrale, Valletta, Malta (Erstauflage.). Heritage Books.

Chicago Style (17th ed.) Citation

De Giorgio, Cynthia, Thomas Freller, and Daniel Cilia. Die Johannes-Kathedrale, Valletta, Malta. Erstauflage. [Valletta, Malta]: Heritage Books, 2010.

MLA (9th ed.) Citation

De Giorgio, Cynthia, et al. Die Johannes-Kathedrale, Valletta, Malta. Erstauflage. Heritage Books, 2010.

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