Não informado. (2009). Science, Technology and Innovation. British Library, Science Reference and Information Service.
Cita Chicago Style (17a ed.)Não informado. Science, Technology and Innovation. London: British Library, Science Reference and Information Service, 2009.
Cita MLA (8a ed.)Não informado. Science, Technology and Innovation. British Library, Science Reference and Information Service, 2009.
Precaución: Estas citas no son 100% exactas.