Search Results       Your search for [subject]Irrigation -- Economic aspects -- Philippines -- Laguna returned 1 record.           Improvement of irrigation facilities through groundwater development : the Philippines. Rome: United Nations Development Programme, 1976. Subject: Irrigation -- Economic aspects -- Philippines -- Laguna; Irrigation -- Economic aspects -- Philippines -- Guimba (Nueva Ecija); Water, Underground -- Philippines -- Guimba (Nueva Ecija); Water, Underground -- Philippines -- Laguna.          Add to Book Cart Relevance: 20.71%