下水管路施設の管理業務における包括的民間委託 導入ガイドライン骨子

下水管路施設の管理業務における包括的民間委託 導入ガイドライン骨子

45 Pages · 2014 · 2.36 MB · Japanese
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“ If your life's work can be accomplished in your lifetime, you're not thinking big enough. ” ― Wes Jackson
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