Lockheed, M. E., & Verspoor, A. (1991). Improving primary education in developing countries. Published for the World Bank, Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Lockheed, Marlaine E., agus Adriaan Verspoor. Improving Primary Education in Developing Countries. Washington, D.C.: Published for the World Bank, Oxford University Press, 1991.
Lua MLA (8ú heag.)Lockheed, Marlaine E., agus Adriaan Verspoor. Improving Primary Education in Developing Countries. Published for the World Bank, Oxford University Press, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.