Παραπομπή σε μορφή APA (7η εκδ.)

Yeats, A. J. (1994). What are OECD trade preferences worth to Sub-Saharan Africa? World Bank, International Economics Department, International Trade Division.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Yeats, Alexander J. What Are OECD Trade Preferences Worth to Sub-Saharan Africa? Washington, D.C: World Bank, International Economics Department, International Trade Division, 1994.

Παραπομπή σε μορφή MLA (9th εκδ.)

Yeats, Alexander J. What Are OECD Trade Preferences Worth to Sub-Saharan Africa? World Bank, International Economics Department, International Trade Division, 1994.