RT Journal Article SR Electronic(1) A1 Moore, C.J.K. A1 Roelofsen, J. A1 Leckie, G.G. A1 Krattinger, N.YR 1997 T1 Oil field Plays and Their Reserves in Northern Andean Basin in Colombia, Ecuador, PerĂº, and Venezuela JF , VO OP SP cp-117-00067 DO https://doi.org/10.3997/2214-4609-pdb.117.068eng PB European Association of Geoscientists & Engineers, SN 2214-4609, AB , UL https://www.earthdoc.org/content/papers/10.3997/2214-4609-pdb.117.068eng