UNITED NATIONS,Industrial Development Organization. (1978). Manual for the preparation of industrial feasibilitystudies. United Nations.
Lua i Stíl Chicago (17ú heag.)UNITED NATIONS,Industrial Development Organization. Manual for the Preparation of Industrial Feasibilitystudies. New York: United Nations, 1978.
Lua MLA (9ú heag.)UNITED NATIONS,Industrial Development Organization. Manual for the Preparation of Industrial Feasibilitystudies. United Nations, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.