APA (7th ed.) Citation

Sidgwick, H., & Gibbs, H. H. (1886). Bi-metallism. [publisher not identified].

Chicago Style (17th ed.) Citation

Sidgwick, Henry, and Henry Hucks Gibbs. Bi-metallism. [London]: [publisher not identified], 1886.

MLA (9th ed.) Citation

Sidgwick, Henry, and Henry Hucks Gibbs. Bi-metallism. [publisher not identified], 1886.