DOI/USGS/PUBS/ER/PW/OFS
type: Concept
in scheme: providers
definition: Open-file reports include unpublished manuscript reports, maps, and other material that are made available for public consultation at depositories. They are a nonpermanent form of publication that may be cited in other publications as sources of information. Website: http://pubs.usgs.gov/of/ [Summary provided by the USGS.]

USGS
type: Concept