Keller, C., & Heller, P. (2001). Social Sector Reform in Transition Countries. International Monetary Fund.
Lua i Stíl Chicago (17ú heag.)Keller, Christian, agus Peter Heller. Social Sector Reform in Transition Countries. Washington, D.C.: International Monetary Fund, 2001.
Lua MLA (8ú heag.)Keller, Christian, agus Peter Heller. Social Sector Reform in Transition Countries. International Monetary Fund, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.