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1كتاب
المساهمون: Winblad, Uno, Simpson-Hérbert, Mayling, Calvert, Paul, Stockholm Environment Institute
مصطلحات موضوعية: Sanitetsteknik -- miljöaspekter, Ekologi, Toaletter, Avfalssdeponering, Ecologi, hygiene, urine, excreta, waste disposal, ecology