Cita APA (7a ed.)

Meyer, H. (1840). Gutenbergs-Album. [s.n.].

Cita Chicago Style (17a ed.)

Meyer, Heinrich. Gutenbergs-Album. Braunschweig: [s.n.], 1840.

Cita MLA (9a ed.)

Meyer, Heinrich. Gutenbergs-Album. [s.n.], 1840.