Cita APA (7a ed.)

Eduard Pietzsch & Comp. (1839). Andernach. [Eduard Pietzsch und Comp].

Cita Chicago Style (17a ed.)

Eduard Pietzsch & Comp. Andernach. [Drezno]: [Eduard Pietzsch und Comp], 1839.

Cita MLA (9a ed.)

Eduard Pietzsch & Comp. Andernach. [Eduard Pietzsch und Comp], 1839.