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

APA Citation Edition Citation

Allen, M. (2017). A Probable Addition to the Coinage of Henry, Earl of Northumberland (d. 1152). The Royal Numismatic Society.

Chicago Citation Edition Citation

Allen, Martyn. A Probable Addition to the Coinage of Henry, Earl of Northumberland (d. 1152). London: The Royal Numismatic Society, 2017.

MLA Citation Edition Citation

Allen, Martyn. A Probable Addition to the Coinage of Henry, Earl of Northumberland (d. 1152). The Royal Numismatic Society, 2017.