Harford, T. (2018). Fifty things thah made the modern economy. Abacus.
Cita Chicago Style (17a ed.)Harford, Tim. Fifty Things Thah Made the Modern Economy. London, United Kingdom: Abacus, 2018.
Cita MLA (9a ed.)Harford, Tim. Fifty Things Thah Made the Modern Economy. Abacus, 2018.
警告：这些引文格式不一定是100％准确.