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1. Threatened birds of Africa and related islands / compiled by N.J. Collar and S.N. Stuart ; with 12 colour plates by Norman Arlott. English

by Collar, N. J | Stuart, S. N | International Council for Bird Preservation | International Union for Conservation of Nature and Natural Resources.

Edition: 3rd ed.Material type: book Book; Format: print ; Literary form: Not fiction Publisher: Cambridge, U.K. : Gland, Switzerland : International Council for Bird Preservation ; International Union for Conservation of Nature and Natural Resources, 1985Availability: Items available for loan: Sri Lanka Institute of Development Administration [Call number: 18293] (1).

2. Ethics of environment and development : global challenge, international response / edited by J. Ronald Engel and Joan Gibb Engel ; illustrations by John D. Petersen. English

by Engel, J. Ronald | Engel, Joan Gibb | International Union for Conservation of Nature and Natural Resources. Ethics Working Group | Conference on Conservation and Development: Implementing the World Conservation Strategy (1986 : Ottawa, Ont.).

Material type: book Book; Format: print ; Literary form: Not fiction Publisher: Tucson : University of Arizona Press, c1990Availability: Items available for loan: Sri Lanka Institute of Development Administration [Call number: 551.588 ETH] (1).

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