RT null T1 Los mamiferos marinos del oceano pacifico sudeste (panama, colombia, ecuador, peru y chile): diagnostico regional A2 O.Vidal, K1 sea level K1 environmental aspect PB CPPS AND PNUMA YR 1992 FD 1992 LK https://wedocs.unep.org/handle/20.500.11822/11780 UL https://wedocs.unep.org/handle/20.500.11822/11780 DS UN Environment Document Repository RD Sep 23, 2026