T1 Bibliography on marine litter A1 United Nations Environment Programme/Mediterranean Action Plan, PB UNEP/MAP YR 1991 FD 1991 LK https://wedocs.unep.org/handle/20.500.11822/431 UL https://wedocs.unep.org/handle/20.500.11822/431 DS UN Environment Document Repository RD Sep 16, 2026