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  1. 1
    Natural pesticides from the neem tree (Azadirachta indica A. Juss) : proceedings of the First International Neem Conference, Rottach-Egern, Federal Republic of Germany, 16-18 June, 1980 /

    Natural pesticides from the neem tree (Azadirachta indica A. Juss) : proceedings of the First International Neem Conference, Rottach-Egern, Federal Republic of Germany, 16-18 June,...

    Pubblicazione 1981
    “...German Agency for Technical Cooperation,...”
    Atti del Convegno Libro

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  2. 2
    Traditional water purification in tropical developing countries : existing methods and potential application /

    Traditional water purification in tropical developing countries : existing methods and potential application / di Jahn, Samia al Azharia

    Pubblicazione 1981
    “...German Agency for Technical Cooperation (GTZ),...”
    Libro

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