Organisation for Economic Co-operation and Development. (2020). OECD statistics on international trade in services: Detailed tables by partner country, 2014-2018. OECD.
Παραπομπή σε μορφή Chicago (17η εκδ.)Organisation for Economic Co-operation and Development. OECD Statistics on International Trade in Services: Detailed Tables by Partner Country, 2014-2018. Paris: OECD, 2020.
Παραπομπή σε μορφή MLA (9th εκδ.)Organisation for Economic Co-operation and Development. OECD Statistics on International Trade in Services: Detailed Tables by Partner Country, 2014-2018. OECD, 2020.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.