Gaya APA

Thiel, D, J, B, D, A. (2005). The Challenge Of Presentation: Visible And Invisible Parts Of The Frontiers Of The Roman Empire World Heritage Site In The United Kingdom And Germany . Amsterdam: SNA.

Gaya MLA

Thiel, David, J., Breeze, Dan, Andreas. "The Challenge Of Presentation: Visible And Invisible Parts Of The Frontiers Of The Roman Empire World Heritage Site In The United Kingdom And Germany". Amsterdam: SNA, 2005. Text.