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

APA Citation Edition Citation

Bidwell, P. T. (2009). Systems of obstacles on Hadrian's Wall and their relationship to the Turrets. Polifemo.

Chicago Citation Edition Citation

Bidwell, Paul T. Systems of Obstacles on Hadrian's Wall and Their Relationship to the Turrets. Madrid: Polifemo, 2009.

MLA Citation Edition Citation

Bidwell, Paul T. Systems of Obstacles on Hadrian's Wall and Their Relationship to the Turrets. Polifemo, 2009.