N. Gregory Mankiw. (2020). Essentials of Economics, 9th Edition (ninth edition.). Cengage Learning.
Cita Chicago Style (17a ed.)N. Gregory Mankiw. Essentials of Economics, 9th Edition. ninth edition. United States of America: Cengage Learning, 2020.
Cita MLA (8a ed.)N. Gregory Mankiw. Essentials of Economics, 9th Edition. ninth edition. Cengage Learning, 2020.
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