(1971). Shipping and developing countries. Carnegie Endownment for International Peace.
Chicago-referens (17:e uppl.)Shipping and Developing Countries. New York: Carnegie Endownment for International Peace, 1971.
MLA-referens (9:e uppl.)Shipping and Developing Countries. Carnegie Endownment for International Peace, 1971.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.