RT Journal Article SR Electronic(1) A1 Zumarraga, R.YR 1982 T1 Ambiente de Sedimentacion de la Arenisca "T" en la Zona Nor-Oriental Ecuatoriana JF , VO OP SP cp-112-00011 DO https://doi.org/10.3997/2214-4609-pdb.112.011 PB European Association of Geoscientists & Engineers, SN 2214-4609, AB , UL https://www.earthdoc.org/content/papers/10.3997/2214-4609-pdb.112.011