水・土壌・地盤・海洋環境の保全
平成26年度調査報告書 分割版概要版英訳
（概要版英訳）2014 Research report on marine debris floating on the ocean surface and settled on the sea bed in coastal areas around Japan<Summarized Version>
水・土壌・地盤・海洋環境の保全
（概要版英訳）2014 Research report on marine debris floating on the ocean surface and settled on the sea bed in coastal areas around Japan<Summarized Version>