APA (7th ed.) Citation

Ahlefeld, C. v. (1820). Erna. [s.n.].

Chicago Style (17th ed.) Citation

Ahlefeld, Charlotte von. Erna. Altona: [s.n.], 1820.

MLA (9th ed.) Citation

Ahlefeld, Charlotte von. Erna. [s.n.], 1820.

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