Officially

From the publisher, with its history intact.

Revision history

USGS releases assessment of undiscovered oil and gas resources in the Phosphoria Total Petroleum System of SW Wyoming and NW Colorado — 1 version recorded. Nothing here has been overwritten.

  1. Version 1 original current
    USGS releases assessment of undiscovered oil and gas resources in the Phosphoria Total Petroleum System of SW Wyoming and NW Colorado

Officially records where a publication came from, not whether it is true. Imported records are reproduced from an organization's own official source.