Siemens Aktiengesellschaft. (1997). Research and innovation highlights. Siemens AG.
Cita Chicago (17th ed.)Siemens Aktiengesellschaft. Research and Innovation Highlights. Munich: Siemens AG, 1997.
Cita MLA (8th ed.)Siemens Aktiengesellschaft. Research and Innovation Highlights. Siemens AG, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.