1.
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Heidelberg : Verlagsgesellschaft Recht und Wirtschaft, 1985. 7. neubearb.
German | F 67 GRU.I |
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2.
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Utrecht : Van Dale Lexicografie, 1989.
Dutch | A 4(111:115) DAL.G |
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3.
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Utrecht : Van Dale Lexicografie, 1991. 2e.
Dutch | A 4(113:115) DAL.G |
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4.
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Utrecht : Van Dale Lexicografie, 1986.
Dutch | A 4(115:111) DAL.G |
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5.
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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 |
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