Cita APA (7a ed.)

Richter, L. (1877). Adrian Ludwig Richter. [s.n.].

Cita Chicago Style (17a ed.)

Richter, Ludwig. Adrian Ludwig Richter. Dresden: [s.n.], 1877.

Cita MLA (9a ed.)

Richter, Ludwig. Adrian Ludwig Richter. [s.n.], 1877.