Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.
APA Citation Edition CitationFortress: The castles and fortifications quarterly. Beaufort Publishing.
Chicago Citation Edition CitationFortress: The Castles and Fortifications Quarterly. Liphook: Beaufort Publishing.
MLA Citation Edition CitationFortress: The Castles and Fortifications Quarterly. Beaufort Publishing.