APA (7th ed.) Citation

Roquette, O. (1851). Orion. [s.n.].

Chicago Style (17th ed.) Citation

Roquette, Otto. Orion. Bremen: [s.n.], 1851.

MLA (9th ed.) Citation

Roquette, Otto. Orion. [s.n.], 1851.

Warning: These citations may not always be 100% accurate.