Não informado. (2000). Library conservation news. British Library, National Preservation Office.
Chicago-Zitierstil (17. Ausg.)Não informado. Library Conservation News. London: British Library, National Preservation Office, 2000.
MLA-Zitierstil (8. Ausg.)Não informado. Library Conservation News. British Library, National Preservation Office, 2000.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.