Cita APA (7th ed.)

Merck KGaA. (2005). Chemicals and Reagents 2005-2007: General catalogue. Merck KGaA.

Cita Chicago (17th ed.)

Merck KGaA. Chemicals and Reagents 2005-2007: General Catalogue. Darmstadt: Merck KGaA, 2005.

Cita MLA (9th ed.)

Merck KGaA. Chemicals and Reagents 2005-2007: General Catalogue. Merck KGaA, 2005.