Não informado. (2009). Science, Technology and Innovation. British Library, Science Reference and Information Service.
Chicago-Zitierstil (17. Ausg.)Não informado. Science, Technology and Innovation. London: British Library, Science Reference and Information Service, 2009.
MLA-Zitierstil (8. Ausg.)Não informado. Science, Technology and Innovation. British Library, Science Reference and Information Service, 2009.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.