RT null T1 Best practices for Prevention of Marine Litter Input from Land-based Sources in the NOWPAP Region A1 United Nations Environment Programme, K1 marine pollution K1 pollution prevention YR 2013 FD 2013 LK https://wedocs.unep.org/handle/20.500.11822/27230 UL https://wedocs.unep.org/handle/20.500.11822/27230 DS UN Environment Document Repository RD Sep 21, 2026