Paleontologic and stratigraphic relations of phosphate beds in Upper Cretaceous rocks of the Cordillera Oriental, Colombia /
by Edwin K. Maughan, U.S. Geological Survey, and Francisco Zambrano O. ... [et al.] ; Instituto Nacional de Investigaciones Geológico-Mineras.
APA Citation
Zambrano O., F., Maughan, E. K., Geological Survey (U.S.)., Instituto Nacional de Investigaciones Geológico-Mineras. (1979). Paleontologic and stratigraphic relations of phosphate beds in Upper Cretaceous rocks of the Cordillera Oriental, Colombia. [Reston, Va.]: U.S. Geological Survey.
MLA Citation
Zambrano O., Francisco, Edwin K. Maughan, Geological Survey (U.S.), and Instituto Nacional de Investigaciones Geológico-Mineras. Paleontologic And Stratigraphic Relations of Phosphate Beds In Upper Cretaceous Rocks of the Cordillera Oriental, Colombia. [Reston, Va.]: U.S. Geological Survey, 1979.
Warning: These citations may not always be complete (especially for serials).