Society for International Development. North-South Roundtable & Foster, J. (1981). Energy for development, an international challenge: Prepared for the North-South Roundtable of the Society for International Development. Praeger.
Lua i Stíl Chicago (17ú heag.)Society for International Development. North-South Roundtable agus John Foster. Energy for Development, an International Challenge: Prepared for the North-South Roundtable of the Society for International Development. New York: Praeger, 1981.
Lua MLA (9ú heag.)Society for International Development. North-South Roundtable agus John Foster. Energy for Development, an International Challenge: Prepared for the North-South Roundtable of the Society for International Development. Praeger, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.