Frank, R. (2004). Nicole Wermers: Chemie. Revolver.
Cita Chicago (17th ed.)Frank, Rike. Nicole Wermers: Chemie. Frankfurt am Main: Revolver, 2004.
Cita MLA (8th ed.)Frank, Rike. Nicole Wermers: Chemie. Revolver, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.