(1971). Shipping and developing countries. Carnegie Endownment for International Peace.
Lua i Stíl Chicago (17ú heag.)Shipping and Developing Countries. New York: Carnegie Endownment for International Peace, 1971.
Lua MLA (9ú heag.)Shipping and Developing Countries. Carnegie Endownment for International Peace, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.