Cita APA (7th ed.)

Harford, T. (2018). Fifty things thah made the modern economy. Abacus.

Cita Chicago (17th ed.)

Harford, Tim. Fifty Things Thah Made the Modern Economy. London, United Kingdom: Abacus, 2018.

Cita MLA (9th ed.)

Harford, Tim. Fifty Things Thah Made the Modern Economy. Abacus, 2018.