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  1. 1
    Published 1939
    Caracas, 1939-
    v. tables (part. fold.) 23-31 cm.
  2. 2
    Bogotá, Colombia, S.A. : Ministerio de Educación Nacional, Escuela Nacional de Comercio.
    volumes : illustrations ; 21 cm.
  3. 3
    Bogotá : Ministerio de Industrias.
    volumes : illustrations, maps ; 25-31 cm.

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