Phosphate rock in Colombia - a preliminary report
By: by James B. Cathcart and Francisco Zambrano O. ; with a section on The phosphate occurrence at Turmeque by Pedro E. Mojica G.
Contributors: Zambrano, Francisco.; Geological Survey (U.S.)
Series: U.S. Geological Survey bulletin -- 1272-A; Contributions to economic geology
Publisher: U.S. Government Printing Office
Published: 1969
Place of publication: Washington, DC
Language: eng
Number of pages: 77
Subjects: Phosphates -- Colombia.
Other titles: Phosphate occurrence at Turmeque / by Pedro E. Mojica G.
Notes: Bibliogr.

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