T1 Determination of petroleum hydrocarbons in sediments A1 United Nations Environment Programme/Mediterranean Action Plan, PB United Nations Environment Programme YR 1992 FD 1992 LK https://wedocs.unep.org/handle/20.500.11822/1397 UL https://wedocs.unep.org/handle/20.500.11822/1397 DS UN Environment Document Repository RD Sep 24, 2026