Revised water usage and classification Water Quality Criteria Amending Section Nos. 68 and 69, chapter III of the 1978 NPCC Rules and Regulations (corrected version). officers'accreditation.

Bibliografische gegevens
Formaat: Boek
Taal:English
Gepubliceerd in: Phils. DENR (1990)
Reeks:DENR Administrative Order No. 34 Series of 1990
Onderwerpen: