Dyfyniad APA
Liapis, P. S. (2007). Preferential trade agreements: How much do they benefit developing economies? OECD.
Dyfyniad Arddull Chicago
Liapis, Peter S. Preferential Trade Agreements: How Much Do They Benefit Developing Economies? Paris, France: OECD, 2007.
Dyfyniad MLA
Liapis, Peter S. Preferential Trade Agreements: How Much Do They Benefit Developing Economies? OECD, 2007.
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