Cita APA (7a ed.)

Ashworth, W. (1987). A Short history of the international economy since 1850 (4th ed.). Longman.

Cita Chicago Style (17a ed.)

Ashworth, William. A Short History of the International Economy Since 1850. 4th ed. London: Longman, 1987.

Cita MLA (9a ed.)

Ashworth, William. A Short History of the International Economy Since 1850. 4th ed. Longman, 1987.