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Egon Seidel

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Technik-Worterbuch Umweltschutztechnik
Dictionary of Environmental Protection Terminology: English, French, German and Russian
Dictionary of Environmental Protection Technology
Elsevier's Dictionary of Environmenal Protection Technology in English/ German/ French & Russian Fachwoerterbuch Umweltschutztechnik
Dictionary of Environmental Protection Technology: In Four Languages, English, German, French, Russian