1.
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London : Published by Chapman & Hall on behalf of the United Nations Environment Programme, 1992. First edition.
English | C 389 UNEP.W |
Available |
|
2.
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Dordrecht : Kluwer Academic Publishers, c1997.
English | B 79 BER.M |
Available |
|
3.
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The Hague : Kluwer Law International, c1999.
English | C 383 WAT.C |
Available |
|