APA (7th ed.) Citation

Hoffmann, P. (1894). Puzzles old and new. F. Warne and Co..

Chicago Style (17th ed.) Citation

Hoffmann, Professor. Puzzles Old and New. London ; New York: F. Warne and Co., 1894.

MLA (9th ed.) Citation

Hoffmann, Professor. Puzzles Old and New. F. Warne and Co., 1894.