Cita APA (7th ed.)

Gravelle,Hugh. (2008). Microeconomics (3.). Pearson.

Cita Chicago (17th ed.)

Gravelle,Hugh. Microeconomics. 3. Noida: Pearson, 2008.

Cita MLA (9th ed.)

Gravelle,Hugh. Microeconomics. 3. Pearson, 2008.