Cita APA (7th ed.)

Barbour, D. M. (1912). The standard of value. Macmillan.

Cita Chicago (17th ed.)

Barbour, David M. The Standard of Value. London: Macmillan, 1912.

Cita MLA (8th ed.)

Barbour, David M. The Standard of Value. Macmillan, 1912.