Cita APA (7th ed.)

Liapis, P. S. (2007). Preferential trade agreements: How much do they benefit developing economies? OECD.

Cita Chicago (17th ed.)

Liapis, Peter S. Preferential Trade Agreements: How Much Do They Benefit Developing Economies? Paris, France: OECD, 2007.

Cita MLA (9th ed.)

Liapis, Peter S. Preferential Trade Agreements: How Much Do They Benefit Developing Economies? OECD, 2007.