Van Den Berg, H. (2004). International economics. Boston: McGraw - Hill.
Trích dẫn kiểu ChicagoVan Den Berg, Hendrik. International Economics. Boston: McGraw - Hill, 2004.
MLA引文Van Den Berg, Hendrik. International Economics. Boston: McGraw - Hill, 2004.
警告：這些引文格式不一定是100％准確.