Cauca Valley coal survey
Contributors: Auteco.
Publisher: Auteco
Published: 1964
Place of publication: Brussels, Belgium
Language: eng
Format: Microform
Number of pages: 693
Notes: Microfilm. Ann Arbor, Mich. : University Microfilms, 1964? 1 microfilm reel ; 35 mm.
At head of title: Republic of Colombia.