conducted by United Nations Asian and Pacific Development Institute with the support of United Nations Environmental Programme ; edited by Vijita B. de SilvaUnited Nations, Asian and Pacific Development Institute1980
conducted by United Nations Asian and Pcific Development Institute ; with the collaboration of National Institute of Development Administration, Bngkok ; and the support of International Development Research Centre, Canada ; editor, Vijita B. de SilvaUnited Nations Asian and Pacific Development Institute1979