APA (7th ed.) Citation

Custine, A. d. (1839). Ethel. Societe Belge De Libraire.

Chicago Style (17th ed.) Citation

Custine, Astolphe de. Ethel. Bruxelles: Societe Belge De Libraire, 1839.

MLA (9th ed.) Citation

Custine, Astolphe de. Ethel. Societe Belge De Libraire, 1839.

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