APA (7th ed.) Citation

Balzac, H. d., & Marriage, E. (1832). A woman at thirty. The Floating Press.

Chicago Style (17th ed.) Citation

Balzac, Honoré de, and Ellen Marriage. A Woman at Thirty. [Auckland, New Zealand]: The Floating Press, 1832.

MLA (9th ed.) Citation

Balzac, Honoré de, and Ellen Marriage. A Woman at Thirty. The Floating Press, 1832.