APA (7th ed.) Citation

Gruppe, O. F. (1854). Sagen ... des deutschen Volkes. [s.n.].

Chicago Style (17th ed.) Citation

Gruppe, Otto Friedrich. Sagen ... Des Deutschen Volkes. Berlin: [s.n.], 1854.

MLA (9th ed.) Citation

Gruppe, Otto Friedrich. Sagen ... Des Deutschen Volkes. [s.n.], 1854.

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