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

APA Citation Edition Citation

(1972). Map of Hadrian's Wall: Scale 1:31.680 or two inches to one mile. Ordnance Survey.

Chicago Citation Edition Citation

Map of Hadrian's Wall: Scale 1:31.680 or Two Inches to One Mile. Southampton: Ordnance Survey, 1972.

MLA Citation Edition Citation

Map of Hadrian's Wall: Scale 1:31.680 or Two Inches to One Mile. Ordnance Survey, 1972.