Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.

APA Citation Edition Citation

Gem, R. (2005). The Vatican rotunda: A severan monument and its early history.

Chicago Citation Edition Citation

Gem, Richard. The Vatican Rotunda: A Severan Monument and Its Early History. 2005.

MLA Citation Edition Citation

Gem, Richard. The Vatican Rotunda: A Severan Monument and Its Early History. 2005.