Guido, M. (1999). The glass beads of Anglo-Saxon England c. AD 400 - 700: A preliminary visual classification of the more definitive and diagnostic types (1. publ.). Boydell Press.
Chicago-Zitierstil (17. Ausg.)Guido, Margaret. The Glass Beads of Anglo-Saxon England C. AD 400 - 700: A Preliminary Visual Classification of the More Definitive and Diagnostic Types. 1. publ. Woodbridge: Boydell Press, 1999.
MLA-Zitierstil (9. Ausg.)Guido, Margaret. The Glass Beads of Anglo-Saxon England C. AD 400 - 700: A Preliminary Visual Classification of the More Definitive and Diagnostic Types. 1. publ. Boydell Press, 1999.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.