TY - GEN AU - United Nations Environment Programme PY - 2023 DO - https://doi.org/10.59117/20.500.11822/43007 SN - 978-92-807-4054-7 UR - https://wedocs.unep.org/handle/20.500.11822/43007 LA - English PB - United Nations Environment Programme TI - Water Quality Monitoring and Assessment in Rivers, Lakes and Reservoirs - Technical Guidance M3 - Technical guideline ER -