Stoddard,Edward(2016-06-08).«Tough times, shifting roles: examining the EU's commercial diplomacy in foreign energy markets».Journal of European Public Policy24(7): 1048–1068.doi:10.1080/13501763.2016.1170190.ISSN1350-1763.
Stoddard,Edward(2016-06-08).«Tough times, shifting roles: examining the EU's commercial diplomacy in foreign energy markets».Journal of European Public Policy24(7): 1048–1068.doi:10.1080/13501763.2016.1170190.ISSN1350-1763.
Curzon, Gerard. (1965). Multilateral commercial diplomacy; the General agreement on tariffs and trade, and its impact on national commercial policies and techniques. Praeger. OCLC239350.