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.

Détails bibliographiques
Format: Livre
Langue:English
Publié: Phils. DENR (1990)
Collection:DENR Administrative Order No. 34 Series of 1990
Sujets: