APA (7th ed.) Citation

Duchess, 1. (1892). Lady Valworth's diamonds. [International Book].

Chicago Style (17th ed.) Citation

Duchess, 1855?-1897. Lady Valworth's Diamonds. [New York]: [International Book], 1892.

MLA (9th ed.) Citation

Duchess, 1855?-1897. Lady Valworth's Diamonds. [International Book], 1892.

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