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

APA Citation Edition Citation

Bidwell, P. T. (2005). The systems of obstacles on Hadrian's Wall: Their extent, date and purpose.

Chicago Citation Edition Citation

Bidwell, Paul T. The Systems of Obstacles on Hadrian's Wall: Their Extent, Date and Purpose. South Shields, 2005.

MLA Citation Edition Citation

Bidwell, Paul T. The Systems of Obstacles on Hadrian's Wall: Their Extent, Date and Purpose. 2005.