TY - GEN AU - United Nations Environment Programme PY - 2006 SN - 1729-7397 UR - https://wedocs.unep.org/handle/20.500.11822/12216 LA - English KW - water quality TI - Technical Advisory Paper No. 3: Future Needs in Water Quality Monitoring and Assessment - UNEP GEMS/Water Programme M3 - Communication or other resource ER -