APA (7th ed.) Citation

Hankey, T., Gibbs, H. H., & Cazalet, E. (1879). On bi-metallism. E. Wilson.

Chicago Style (17th ed.) Citation

Hankey, Thomson, Henry Hucks Gibbs, and Edward Cazalet. On Bi-metallism. London: E. Wilson, 1879.

MLA (9th ed.) Citation

Hankey, Thomson, et al. On Bi-metallism. E. Wilson, 1879.