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

APA Citation Edition Citation

Birley, E. (1952). Housesteads Roman fort, Northumberland. Her Majesty's Stationery Office.

Chicago Citation Edition Citation

Birley, Eric. Housesteads Roman Fort, Northumberland. London: Her Majesty's Stationery Office, 1952.

MLA Citation Edition Citation

Birley, Eric. Housesteads Roman Fort, Northumberland. Her Majesty's Stationery Office, 1952.