The Progreso Basin Province of northwestern Peru and southwestern Ecuador [electronic resource] : Neogene and Cretaceous-Paleogene total petroleum systems / by Debra K. Higley.
Imprint
[Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, 2004.
Mode of access: Internet from the USGS Web site. Address as of 10/18/04: http://pubs.usgs.gov/bul/2206/B/B2206-B.pdf; current access is available via PURL.
Note
Title from PDF title screen (viewed on Oct. 18, 2004).
