British Library. (2002). Market research: A guide to the British Library collections (9th ed.). British Library.
Chicago-Zitierstil (17. Ausg.)British Library. Market Research: A Guide to the British Library Collections. 9th ed. London: British Library, 2002.
MLA-Zitierstil (9. Ausg.)British Library. Market Research: A Guide to the British Library Collections. 9th ed. British Library, 2002.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.