APA (7th ed.) Citation

Willett, E. (1876). True blue, or, The writing in cipher. Frank Starr.

Chicago Style (17th ed.) Citation

Willett, Edward. True Blue, or, The Writing in Cipher. New York: Frank Starr, 1876.

MLA (9th ed.) Citation

Willett, Edward. True Blue, or, The Writing in Cipher. Frank Starr, 1876.