Petróleo, oligarquía e imperio
By: [por] Jorge A. Villegas Arango.  Aurelio Echeverri J., colaborador.
Contributors: Echeverri J., Aurelio, joint author.
Publisher: Ediciones Socio Económicas
Published: 1967
Place of publication: Bogotá
Language: spa
Number of pages: 319
Subjects: Petroleum industry and trade -- Colombia.
Notes: Bibliographical footnotes.