Appleyard, D. R. (2006). International economics. Boston: McGraw- Hill.
Trích dẫn kiểu ChicagoAppleyard, Dennis R. International Economics. Boston: McGraw- Hill, 2006.
MLA引文Appleyard, Dennis R. International Economics. Boston: McGraw- Hill, 2006.
警告：这些引文格式不一定是100％准确.