Cita APA (7a ed.)

Gregorovius, F. (1858). Euphorion. [s.n.].

Cita Chicago Style (17a ed.)

Gregorovius, Ferdinand. Euphorion. Leipzig: [s.n.], 1858.

Cita MLA (9a ed.)

Gregorovius, Ferdinand. Euphorion. [s.n.], 1858.