Manke, C. (1994). Improving electric power utility efficiency: Issues and recommendation. World Bank.
Lua i Stíl Chicago (17ú heag.)Manke, Christoph. Improving Electric Power Utility Efficiency: Issues and Recommendation. Washington, D.C: World Bank, 1994.
Lua MLA (9ú heag.)Manke, Christoph. Improving Electric Power Utility Efficiency: Issues and Recommendation. World Bank, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.